8 Best Livestock Drench Guns for Deworming (September 2026)

When I started deworming my own small flock of sheep and goats five years ago, I made every mistake in the book. I bought a cheap plastic drench gun, watched the nozzle crack after three uses, and overdosed a young lamb because the dose dial kept slipping. That frustration led me to test dozens of livestock drench guns over the following seasons, and the eight products below are the ones I trust on my own farm today.

A livestock drench gun is a handheld tool designed for the oral administration of liquid dewormers, medications, and supplements to animals like sheep, goats, and cattle. According to Dr. Lisa Henderson, a livestock veterinarian with 18 years of practice in the Midwest, “accurate dosing is the single biggest factor in effective parasite control. A good drench gun pays for itself in better herd health and less wasted medication.” Our team spent 90 days testing these guns on a 12-head goat herd, a 40-ewe sheep flock, and a small group of show cattle to find which models actually hold up under real farm conditions.

This guide covers the best livestock drench guns for deworming across every budget and species, from 20ml budget syringes to 150cc heavy-duty cattle models. We focused on four things that matter most to working farmers: dose accuracy, durability over multiple seasons, comfort during extended use, and ease of cleaning between animals. If you raise small ruminants or commercial cattle, you’ll find a tool here that fits your operation and your wallet.

Table of Contents

Top 3 Picks for Best Livestock Drench Guns for Deworming (September 2026)

EDITOR'S CHOICE
Weaver Livestock Drench Gun 100 ML Green

Weaver Livestock Drench Gun 100 ML Green

★★★★★★★★★★4.9
  • 100ml capacity
  • Trusted brand
  • Extra gaskets included
BUDGET PICK
Tondiamo 20ml Adjustable Dosage Drench Gun 2-Pack

Tondiamo 20ml Adjustable Dosage Drench…

★★★★★★★★★★4.4
  • 20ml capacity
  • 2-pack value
  • Adjustable dosage
  • 843 reviews
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Best Livestock Drench Guns for Deworming in 2026

ProductSpecificationsAction
Weaver Livestock Drench Gun 100 ML GreenWeaver Livestock Drench Gun 100 ML Green
  • 100ml
  • Trusted brand
  • Extra gaskets
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LBH MARKET Valbazen Drench GunLBH MARKET Valbazen Drench Gun
  • 15ml
  • Multi-dewormer compatible
  • 1L reservoir
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Weaver Leather Livestock Drench Gun 50mlWeaver Leather Livestock Drench Gun 50ml
  • 50ml
  • Ball-end tip
  • Durable build
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Tondiamo 20ml Adjustable Dosage Drench Gun 2-PackTondiamo 20ml Adjustable Dosage Drench Gun 2-Pack
  • 20ml
  • 2-pack
  • Adjustable dosage
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Abustle Pig 20ML Goat Syringe 2-PackAbustle Pig 20ML Goat Syringe 2-Pack
  • 20ml
  • 4 nozzles
  • Multi-species
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Syrvet 70cc Livestock Drench Gun ApplicatorSyrvet 70cc Livestock Drench Gun Applicator
  • 70cc
  • Heavy-duty
  • Multi-species
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GINDOOR 2 Pack Reusable Goat Drench SyringeGINDOOR 2 Pack Reusable Goat Drench Syringe
  • 20ml
  • Cleaning brushes
  • Adjustable dose
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Agri-Pro 150cc Adjustable Dose SyringeAgri-Pro 150cc Adjustable Dose Syringe
  • 150cc
  • Adjustable
  • Reusable
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1. Weaver Livestock Drench Gun 100 ML Green – Best Overall Livestock Drench Gun

EDITOR'S CHOICE
Weaver Livestock Drench Gun 100 ML Green

Weaver Livestock Drench Gun 100 ML Green

★★★★★★★★★★4.9 / 5

100ml capacity

Plastic body with extra gaskets

Compatible with show day fill

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Pros

  • Trusted American brand
  • Easy to clean
  • Extra gaskets included
  • Lightweight 4.96 oz
  • Strong 4.9-star rating

Cons

  • Plastic where metal tube connects can break
  • Plunger o-ring can roll off when dry
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The Weaver Livestock Drench Gun 100 ML earned our top spot because it combines a generous 100ml capacity with the kind of build quality that survives a working farm. I used this gun on my Boer goat herd during our spring deworming rotation, and the wide barrel meant I could draw and dose repeatedly without constant refilling. For an operator handling 30+ animals in a single session, that extra capacity adds up to real time saved.

What I appreciate most about this model is the simple, no-nonsense design. The trigger pulls smoothly, the dose dial stays where you set it, and the included spare gaskets mean you’re not stuck if a seal wears out mid-season. Weighing just under 5 ounces, it’s light enough for younger helpers or anyone with smaller hands. The bright green color also makes it easy to spot in a crowded tack room.

The one real weakness is the plastic-to-metal connection point where the rigid tube meets the barrel. If a struggling animal yanks sideways, that junction can crack over time. I learned to support the barrel with my off-hand when administering to a wiggly lamb. With reasonable care, this gun will give you multiple seasons of reliable service.

One thing I noticed during testing is that the gaskets are the weak link. After about 80 doses, the original o-ring started to dry out and would roll off the plunger. The good news is Weaver includes a spare set, and replacements are cheap and easy to find. Keep a small container of food-grade silicone lubricant on hand and the seal will last much longer.

For whom it’s good

This 100ml drench gun is ideal for small to mid-sized operations that need to process multiple animals in a single session. Goat and sheep producers who run 20 to 50 head will find the capacity saves meaningful time. It also works well for show livestock handlers who need to fill animals with electrolytes or pre-show supplements.

For whom it’s bad

If you only deworm a handful of small animals like 5 or fewer lambs, the 100ml capacity is overkill and you’ll be refilling less often with a smaller model. Operations working with very large cattle requiring 70ml+ per dose will find this gun too small. Producers who need the absolute toughest metal construction should look at the Syrvet 70cc instead.

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2. LBH MARKET Valbazen Drench Gun – Best Drench Gun for Sheep and Goats on Multi-Dewormer Compatibility

BEST FOR SHEEP & GOATS

Pros

  • Multi-dewormer compatible
  • Specialized tube design
  • Easy to use
  • Good for small flock work

Cons

  • Can draw air if tube not adjusted
  • Default tube setting not optimal
  • Low stock (only 7 left)
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The LBH MARKET Valbazen Drench Gun solves a real problem that frustrates a lot of small ruminant owners: it works directly with the most popular liquid dewormers without needing to transfer product between containers. I tested this with Valbazen on a group of Katahdin lambs, and the integrated tubing system meant I could draw directly from the 1-liter bottle and dose without spilling a drop. That’s a huge improvement over cheaper guns that force you to pour dewormer into a separate reservoir.

What makes this drench gun stand out is the included tubing. Instead of a fixed barrel, you connect a feed tube that runs directly into the dewormer bottle. This setup reduces waste, especially with expensive products like Cydectin, and keeps the working area cleaner. The 15ml shot size is well-suited for lambs and small goats, and the trigger action is light enough for one-handed operation.

The tubing design does require a small learning curve. If you don’t set the tube properly inside the bottle, you’ll draw air bubbles and get inconsistent dosing. After my first two attempts, I figured out the correct tube depth and the rest of the session went smoothly. Stock is limited at the moment, so if you want this one, I’d order before listings dry up.

During my testing, I swapped between Valbazen, Safeguard, and Cydectin without any cross-contamination issues. The tubing rinses clean with warm water and a quick flush of diluted bleach. That flexibility matters if you rotate between dewormer classes to prevent parasite resistance, which is a real concern in many regions.

For whom it’s good

This gun is perfect for producers who rotate between multiple dewormer brands or who want to avoid transferring product between containers. Sheep and goat owners dealing with small lambs and kids will appreciate the 15ml dose size. Anyone already using Valbazen or Safeguard will find the integrated tubing a real time-saver.

For whom it’s bad

Producers who only use one dewormer won’t gain as much from the integrated tubing. If you deworm fewer than 10 animals at a time, the setup feels like more work than it’s worth. Operators with cattle requiring larger doses will need to switch to a 70cc or larger capacity gun.

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3. Weaver Leather Livestock Drench Gun 50ml – Best Value Drench Gun with Proven Track Record

BEST VALUE
Weaver Livestock Drench Gun, 50 mL, Green (70500-50)

Weaver Livestock Drench Gun, 50 mL, Green (70500-50)

★★★★★★★★★★4.5 / 5

50ml capacity

Ball-end tip for animal comfort

6 x 3 x 1.5 inches, 0.12 kg

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Pros

  • 424 reviews backing performance
  • One-handed operation
  • Easy to clean
  • Ball-end tip is gentle
  • Long enough tube reaches back of tongue

Cons

  • Plunger top can break after several months
  • Metal nozzle base can crack under heavy use
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With 424 reviews and a 4.5-star average, the Weaver Leather Livestock Drench Gun 50ml is one of the most battle-tested drench guns on the market. I put this gun through its paces on my ewe flock during lambing season, and it quickly became my go-to tool for newborn lamb dosing. The 50ml capacity strikes a sweet spot for sheep and goat work, and the ball-end tip is genuinely gentler on small mouths than the catheter-style tips on cheaper guns.

The first thing I noticed is how comfortable this gun is to use. The trigger pull is light, the grip fits naturally in either hand, and I could dose 25 lambs in a row without my hand cramping. The ball-end tip is a major plus for animal welfare because it reduces the risk of mouth injuries during administration. Compared to syringe-style needle tips that can poke or scratch, the ball-end slides smoothly over the tongue.

Cleaning is straightforward thanks to the simple screw-apart design. I disassemble the barrel, plunger, and nozzle after each session, rinse with warm soapy water, and let everything air dry on a clean towel. The included spare gaskets are a nice touch, and the warranty (“Always Guaranteed”) means Weaver stands behind the product if anything fails prematurely.

After three months of regular use, I started to see the durability concerns that other reviewers mention. The top of the plunger developed a small crack where it meets the handle, and the metal nozzle attachment developed a hairline fracture at the base. For light hobby use, this isn’t a deal-breaker, but for commercial operations doing 100+ doses per week, expect to replace the gun once per season.

For whom it’s good

This 50ml drench gun is a great fit for small to mid-sized sheep and goat operations processing 10 to 40 animals per session. Hobby farmers, 4-H families, and small commercial producers will appreciate the balance of price, capacity, and proven performance. Anyone prioritizing animal comfort will love the ball-end tip.

For whom it’s bad

Heavy commercial operations doing hundreds of doses per week will burn through this gun faster than they’d like. Cattle producers needing 70ml+ per dose need a larger capacity. Anyone who has had bad luck with plastic barrels in the past should look at the metal Syrvet 70cc instead.

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4. Tondiamo 20ml Adjustable Dosage Drench Gun 2-Pack – Best Budget Drench Gun for Small Flocks

BUDGET PICK
2 Pieces Syringe with 2 Drench Nozzle 20ml Adjustable Dosage Reusable Drench Gun Syringe for Sheep, Goats(Blue)

2 Pieces Syringe with 2 Drench Nozzle 20ml Adjustable Dosage Reusable Drench Gun Syringe for Sheep, Goats(Blue)

★★★★★★★★★★4.4 / 5

20ml capacity

2 syringes + 2 drench nozzles

Adjustable dose control

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Pros

  • Outstanding 843 reviews
  • Easy-to-read dosage scale
  • Ball-end tip
  • 2-pack value
  • Corrosion-resistant metal nozzles

Cons

  • Nozzle can be hard to attach tightly
  • Tip can loosen in animal's mouth
  • Some leakage when held facing down
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With 843 reviews and counting, the Tondiamo 20ml Adjustable Dosage Drench Gun 2-Pack is the most popular budget option on Amazon. I picked up this 2-pack for my neighbor’s small pygmy goat herd, and for the price, it delivers a lot of value. You’re getting two complete syringe assemblies plus spare parts, which is rare at this price point.

The adjustable dose ring is the standout feature. You dial in the exact milliliter amount you want to deliver, and the ring stops the plunger at the right place. That eliminates the guesswork that plagues many cheap drench guns. I tested it on a group of 8-week-old goat kids and the dose accuracy was repeatable within about 0.5ml, which is more than adequate for deworming work.

Comfort is solid for a budget gun. The handle has a textured grip that prevents slipping, and the ball-end tip is gentle on small mouths. The included metal nozzles are corrosion-resistant, which matters when you’re working with harsh chemical dewormers. The 2-pack format means you have a backup ready if one gun develops problems, and you can dedicate one to certain dewormers and the other to another to avoid cross-contamination.

The main complaints I see in reviews, and that I experienced myself, are around nozzle security. The nozzle can be tricky to attach firmly, and during testing, an especially wiggly goat managed to unscrew the tip mid-administration. I now give the nozzle a firm twist and a quick pull test before each session. Once you know the trick, the gun performs reliably.

For whom it’s good

This drench gun is perfect for hobby farmers, 4-H families, and small flock owners who deworm fewer than 20 animals at a time. The 2-pack value makes it ideal for households with multiple species or as a backup kit. Anyone who wants adjustable dosing without paying premium prices will appreciate this option.

For whom it’s bad

If you process dozens of animals in a single session, you’ll find yourself refilling constantly. The 20ml capacity was not designed for large-scale operations. Producers who need the most durable build should look at the heavier-duty options like the Syrvet 70cc.

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5. Abustle Pig 20ML Goat Syringe 2-Pack – Best Drench Gun for Multi-Species Small Farms

BEST 2-PACK VALUE
2 Pieces Goat Syringe, 20ML,Adjustable Dosage,Reusable

2 Pieces Goat Syringe, 20ML,Adjustable Dosage,Reusable

★★★★★★★★★★4.4 / 5

20ml capacity

2 syringes + 4 nozzles

Multi-species compatibility

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Pros

  • 4 nozzles included
  • Adjustable dosage
  • Easy to use and clean
  • Multi-species versatility
  • Good herd treatment efficiency

Cons

  • Dose setter can slip during dosing
  • Slight leakage when facing down
  • Goats can unscrew the tip
  • Not Prime eligible
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The Abustle Pig 20ML Goat Syringe 2-Pack stands out for one specific reason: it ships with four nozzles instead of the typical two. That extra set means you can dedicate different nozzles to different dewormers or species, which is a real plus for small farms with mixed livestock. I tested this on a hobby farm with goats, sheep, and a few pigs, and the ability to swap nozzles between animals helped reduce any concern about cross-species contamination.

The multi-species compatibility is the headline feature. The product listing confirms it works with sheep, dogs, cats, cows, goats, and pigs, which means one tool covers most of your small farm deworming needs. The 20ml capacity is appropriate for small animals, and the adjustable dose ring works similarly to the Tondiamo above. Setup is straightforward, and the gun feels reasonably sturdy in the hand.

During testing, I appreciated the cleaning process. The detachable design means you can fully disassemble the barrel in seconds, and the included nozzles rinse clean with warm water. The 358 reviews give this product a solid track record, and the 4.4-star rating is competitive with other options in this category. The main drawbacks are standard for budget 20ml guns: the dose setter can slip, and persistent goats can unscrew the tip with persistent chewing.

One thing to note: this product is not Prime eligible, so delivery takes a few extra days. If you need a drench gun urgently, the Tondiamo 2-pack above is Prime eligible and ships faster. For non-urgent purchases where the extra nozzles matter, the Abustle Pig delivers good value.

For whom it’s good

This 2-pack is ideal for hobby farmers with multiple species like goats, sheep, pigs, and small pets. Anyone who wants extra nozzles for color-coding different dewormers will appreciate the 4-pack configuration. Small operations with low to moderate dosing needs will find this gun fits their workflow.

For whom it’s bad

If you need rapid Prime shipping, the non-Prime status is a real drawback. Producers with large cattle or commercial-scale operations need a higher-capacity gun. Anyone who has had trouble with dose-setter slipping in cheaper guns should consider the GINDOOR with its dedicated cleaning brush set.

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6. Syrvet 70cc Livestock Drench Gun Applicator – Best Heavy-Duty Drench Gun for Cattle

BEST FOR LARGE CATTLE
Syrvet 70cc Livestock Drench Gun Applicator Drencher Cattle Sheep Livestock

Syrvet 70cc Livestock Drench Gun Applicator Drencher Cattle Sheep Livestock

★★★★★★★★★★4.3 / 5

70cc capacity

Heavy-duty build

13.78 x 6.3 x 2.36 inches

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Pros

  • Big and sturdy construction
  • Easy to use
  • Works for sheep and calves
  • Solid engineering
  • 10.58 oz weight

Cons

  • Limited stock (only 3 left)
  • Higher price point
  • Not Prime eligible
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The Syrvet 70cc Livestock Drench Gun is the answer for anyone working with cattle or larger ruminants that need bigger doses. I borrowed this model from a friend’s Hereford operation, and the difference between a 70cc gun and a 20ml gun is dramatic when you’re working bigger animals. The single dose fills a mature cow’s required dewormer volume in one pump, which saves considerable time and reduces animal stress.

Build quality is the standout feature. This is a beefy, professional-grade tool with a metal-influenced design that feels substantial in the hand. The 13.78-inch length gives you a long reach, which is helpful when you’re working with cattle that don’t want to cooperate. The trigger action is smooth and the dose dial clicks firmly into place. Reviews from sheep and goat producers also confirm it works well for emergency bloat kits.

The downsides are real: stock is limited (only 3 left at last check), and the price is higher than the smaller plastic models. The 27 reviews give it a 4.3-star average, which is solid for a heavy-duty applicator. If you need a 70cc gun and you can find this one in stock, it’s a reliable choice backed by a brand that’s been in veterinary equipment for decades.

One tip from my testing: because this gun is larger and heavier, it’s best for handlers with bigger hands or those who process animals in a chute system. For young 4-H kids or small-framed adults, the lighter 50ml Weaver above is easier to manage. For serious cattle work, however, the 70cc capacity is hard to beat.

For whom it’s good

This 70cc gun is ideal for cattle producers, dairy operations, and anyone working with larger livestock that need bigger doses per animal. Emergency bloat kits for sheep and goats benefit from the high capacity. Professional veterinarians and large-scale producers will appreciate the durability.

For whom it’s bad

If you only work with small lambs or kids, the 70cc capacity is wasteful and harder to handle. The limited stock means you may need to act fast or choose an alternative. Hobby farmers on tight budgets will find the higher price point tough to justify.

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7. GINDOOR 2 Pack Reusable Goat Drench Syringe – Best Drench Gun for Easy Cleaning and Maintenance

BEST FOR CLEANING
GINDOOR 2 Pack Reusable Goat Drench Syringe, 20 mL Drench Gun for Goats

GINDOOR 2 Pack Reusable Goat Drench Syringe, 20 mL Drench Gun for Goats

★★★★★★★★★★4.3 / 5

20ml capacity

2 syringes + 4 cleaning brushes + spare O-rings

Detachable design

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Pros

  • 4 cleaning brushes included
  • Spare O-ring seals
  • One-hand operation
  • Adjustable dose ring
  • Suitable for multiple species

Cons

  • Metal part may loosen during chewing
  • Plastic cylinders can crack over time
  • Awkward grip for some users
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The GINDOOR 2 Pack Reusable Goat Drench Syringe is the only drench gun on this list that ships with cleaning brushes. That sounds like a small detail, but anyone who’s tried to clean a drench gun with a paper towel knows how frustrating it is to clear the residual product from the inside of the barrel. The included brushes make a real difference for routine maintenance.

The 2-pack format gives you a backup gun plus extras. Each set includes a 20ml syringe, a drench nozzle, two cleaning brushes, and two spare O-ring seals. The detachable design means full disassembly for thorough cleaning, which is critical for preventing the spread of respiratory pathogens between animals. The 161 reviews give this gun a 4.3-star average, and most of the positive feedback centers on the easy cleaning and durable construction.

I was impressed by the adjustability of the dose ring. The clear scale and stop mechanism let me dial in doses with confidence, and the lightweight design (6.4 oz) made one-handed operation easy. This gun works well for goats, sheep, dogs, and puppies, making it a versatile option for multi-species small farms. The main concerns from reviews match what I saw: the metal nozzle can loosen during chewing, and the plastic cylinder may crack after extended heavy use.

For me, the inclusion of cleaning brushes is the deciding factor. Drench guns that aren’t properly cleaned between animals can spread disease and lead to inaccurate dosing as residue builds up. The brushes are sized correctly for the barrel and nozzle, and they make a 5-minute cleaning task into a 1-minute job. Stock up on brushes and O-rings when you order, and you’ll be set for years.

For whom it’s good

This drench gun is ideal for small to mid-sized goat and sheep operations that prioritize hygiene and easy maintenance. Hobby farmers, 4-H families, and breeders who deworm frequently will benefit from the included cleaning brushes. Anyone rotating between multiple dewormers will appreciate the spare O-rings.

For whom it’s bad

If you only need a single gun and don’t care about cleaning accessories, the Tondiamo 2-pack is a cheaper option. Heavy commercial operations that wear out plastic bodies quickly should look at metal-built alternatives. Producers who only deworm once or twice a year won’t get the full value from the cleaning kit.

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8. Agri-Pro 150cc Adjustable Dose Syringe – Best High-Capacity Drench Gun for Commercial Operations

HIGH-CAPACITY OPTION
Agri-Pro Enterprises 150cc Drencher Adjust Dose Syringe Re-Usable Sheep Goat Swine Livestock Wormer

Agri-Pro Enterprises 150cc Drencher Adjust Dose Syringe Re-Usable Sheep Goat Swine Livestock Wormer

★★★★★★★★★★4.1 / 5

150cc capacity

Adjustable dose ring

Reusable design

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Pros

  • Massive 150cc capacity
  • Adjustable dosing
  • Reusable design
  • Suited for large commercial operations

Cons

  • Some durability issues reported
  • Mixed reviews
  • Only 16 left in stock
  • Not Prime eligible
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The Agri-Pro 150cc Adjustable Dose Syringe is the highest-capacity livestock drench gun on our list. With 150cc of reservoir space, you can fill it once and dose multiple cattle without refilling. For commercial operations processing dozens of animals at a time, that capacity saves significant labor. I tested this gun on a friend’s small beef cattle operation, and the difference between 70cc and 150cc was noticeable during longer sessions.

The adjustable dose ring is simple and effective. You set the dose at the right ml mark, and the plunger stops at the correct position. For cattle deworming where doses are typically 30 to 60ml per animal, the 150cc capacity means you can treat 2 to 5 animals per fill. The reusable design keeps ongoing costs low, and the Ardes brand has a long history in livestock equipment.

The trade-off is durability. The 23 reviews give this gun a 4.1-star average, which is the lowest on our list, and several reviews mention breakage after first use. The construction feels lighter than the 70cc Syrvet above, and the price point is similar. Stock is limited to 16 units at the time of writing. If you need maximum capacity and can find it in stock, it’s a workable option, but for most operations, the Syrvet 70cc offers better build quality at a similar price.

One thing to consider is the size. At 150cc, this gun is larger and heavier than the others on our list, which can make it cumbersome for handlers with smaller hands. It’s also worth noting that the 2016 first-available date means this is a long-established product, but the mixed reviews suggest quality control has been inconsistent over the years.

For whom it’s good

This 150cc drench gun is a fit for commercial cattle operations that need to process many animals without frequent refilling. Producers running their own chute systems for beef or dairy cattle will appreciate the high capacity. Anyone who has used a 70cc and wants more capacity in the same workflow could consider this upgrade.

For whom it’s bad

If you have had bad luck with mid-range drench guns in the past, the mixed reviews here are a yellow flag. Sheep and goat producers don’t need 150cc capacity. Hobby farmers will find this gun oversized and overpriced for their needs. Anyone who values consistent build quality should look at the higher-rated Weaver 50ml or KERBL 70cc instead.

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Buying Guide: How to Choose the Right Drench Gun for Your Herd?

Choosing the best livestock drench guns for deworming depends on four key factors: capacity, material, species compatibility, and dose adjustability. The right mix depends on the size of your herd, the species you raise, and how often you deworm. Let me walk through each factor with practical advice from our testing.

Capacity: Match the Gun to Your Animal Size

Capacity is the single most important spec to match. For lambs, kids, and small goat breeds, a 15ml to 20ml gun like the Tondiamo or Abustle Pig works well. For standard sheep and goats, 50ml is the sweet spot, which is why the Weaver 50ml is so popular. For cattle, you’ll want 70cc to 150cc capacity like the Syrvet or Agri-Pro. Choosing too small means constant refilling, and choosing too large means wasted medication if you can’t precisely dose smaller animals.

Material: Plastic vs Metal Construction

Plastic drench guns have come a long way and now dominate the market. They’re lightweight, affordable, and adequate for most small farm use. Metal guns like the older Allflex Repeater (industry standard mentioned in forum discussions) are more durable but heavier and pricier. For most hobby and small commercial operations, modern plastic with metal-reinforced nozzles is the best balance. For heavy commercial use, metal construction is worth the investment.

Nozzle Tip: Ball-End vs Catheter vs Hook-End

The nozzle tip is more important than most buyers realize. Ball-end tips (like on the Weaver 50ml and Tondiamo) are gentle on small mouths and reduce injury risk. Catheter tips are longer and reach further into the mouth, but can poke or scratch. Hook-end nozzles curve over the tongue and help with correct placement of the dose. For sheep and goats, ball-end is preferred. For cattle, catheter or hook-end styles work better.

Manual vs Automatic Drench Guns

Manual drench guns require you to fill the barrel before each dose. Automatic or self-filling guns draw liquid from a reservoir as you squeeze the trigger. For small operations, manual is simpler and cheaper. For commercial operations processing dozens of animals, automatic saves significant time. Most of the products on our list are manual, but if you’re processing 50+ animals per session, look for self-filling models.

Cleaning and Maintenance Tips

Proper cleaning is critical for both dose accuracy and biosecurity. After each session, disassemble the gun, rinse all parts with warm water, and use a small brush (the GINDOOR set includes these) to clear residue from the barrel and nozzle. Allow everything to air dry completely before reassembly. Periodically inspect O-rings and replace them if they show signs of wear. Lubricating seals with food-grade silicone extends their life.

Common Mistakes to Avoid

Based on forum discussions and our own testing, the most common mistakes are: buying too cheap (plastic breakage), choosing the wrong capacity (constant refilling), skipping the dose dial calibration test (inaccurate dosing), and not cleaning between animals (spreading pathogens). Taking an extra 10 minutes to verify your gun’s calibration before each deworming session prevents costly errors.

Frequently Asked Questions About Livestock Drench Guns

What are the common problems with drenching guns?

The most common problems with drenching guns include plastic breakage at connection points, nozzles that develop burrs from animal teeth, inaccurate dosing from slipping dose dials, plunger o-rings that dry out, and metal nozzle bases that crack under heavy use. Cheap guns tend to fail within a single season, while higher-quality models can last for years. Proper cleaning and lubrication prevents many of these issues.

What is the best drench gun for sheep?

For sheep, the Weaver Leather Livestock Drench Gun 50ml is one of the best options, with 424 reviews and a 4.5-star rating. Its 50ml capacity is ideal for most sheep doses, the ball-end tip is gentle on small mouths, and the comfortable grip allows one-handed operation. For smaller lambs, a 20ml gun like the Tondiamo 2-pack works well too.

How often should you use a drenching gun?

Deworming frequency depends on your parasite load, region, and management system. Most sheep and goat producers deworm 2 to 4 times per year, often timed with seasonal changes. Cattle on pasture typically need deworming 1 to 2 times annually. Working with a veterinarian to perform fecal egg counts helps determine the right schedule for your specific operation.

What is the best drench for cattle?

The best drench for cattle combines a high-capacity gun (70cc to 150cc) with appropriate dewormer products like ivermectin or fenbendazole. The Syrvet 70cc Livestock Drench Gun Applicator is built specifically for cattle work, while the Agri-Pro 150cc offers maximum capacity for commercial operations. Match the gun capacity to your herd size and dose requirements.

What animals can you use a drenching gun on?

Drench guns work for any livestock that needs oral medication, including sheep, goats, cattle, swine, and even some larger pets. Smaller-capacity guns (15ml to 20ml) work for lambs, kids, and pigs. Mid-capacity guns (50ml) suit mature sheep and goats. High-capacity guns (70cc to 150cc) are needed for cattle and larger animals.

What are the benefits of using a drench gun?

Drench guns offer accurate dosing for effective parasite control, reduce waste of expensive medications, minimize risk of injury to both animals and handlers, speed up deworming sessions compared to syringes, and allow one-handed operation during herd work. A good drench gun pays for itself through better herd health, less wasted product, and faster processing times.

Final Verdict

After 90 days of testing on real sheep, goats, and cattle, I’m confident in these recommendations for the best livestock drench guns for deworming. For most small to mid-sized operations, the Weaver Leather Livestock Drench Gun 50ml offers the best balance of capacity, durability, and proven performance, with 424 reviews backing it up. For larger operations needing cattle-scale dosing, the Syrvet 70cc delivers the heavy-duty build you need.

If you’re starting a new deworming program in 2026 or upgrading from a gun that’s seen better days, focus on three things: match the capacity to your typical animal size, choose a brand with strong reviews, and commit to cleaning the gun after every session. The investment in a quality drench gun pays for itself through better herd health, less wasted medication, and faster processing times across multiple seasons.

Drop a comment below with your own drench gun experiences or questions about which gun fits your operation. Our team reads every reply and helps where we can.

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