Can sustained rapid-fire shooting with no cool-down period wear out a quality barrel more quickly? The answer is “Yes” according to Forum member LCazador, who did an interesting comparison test with two .243 Winchester barrels. He started off with two, identical, match-grade HV taper stainless barrels. Both were NEW at the start of testing, and LCazador shot the same load through each: 95gr match bullets with 38 grains of Hodgdon Varget. After giving both barrels the same, gentle 20-round break-in, 300 rounds were then fired through each barrel — in very different ways. Barrel condition and wear were monitored with a borescope.
Barrel One — Slow Fire, Cool Down Periods, Cleaning Every 50 Rounds
At the end of the 300-round test, Barrel One looked brand new. There was none of the severe fire cracking found in Barrel Two. This barrel was shot no more than 10 times without a cool down and firing was done at a much slower pace. Cleaning for this barrel was done every 50 shots.
Barrel Two — Fast Firing, No Waiting, Cleaning Every 100 Rounds
The second barrel, which received hard use and minimal cleaning, was severely damaged with severe fire cracking at the leade and throat. As a result, the barrel had to be re-chambered. This barrel was shot 100 rounds at time without cleaning and was shot up to 20 times in succession without a cool down.
LESSON LEARNED — Heat Kills Barrel Life
Don’t let your barrel get too hot, and keep it clean. One afternoon can ruin a barrel!
Monitoring Barrel Wear with Borescope
Some folks worry too much about what their borescopes reveal — many barrels do not have to be “squeaky clean” to perform well. In fact some barrels run better after ten or more fouling shots. However, a borescope can be very helpful when your barrel starts losing accuracy for no apparent reason. Forum member FdShuster writes:
“A borescope is a positive way of backing up your suspicions when the rifle starts to throw an occasional (soon followed by more frequent) wild shot. Using the scope is also an excellent way to determine that the cause is barrel wear and not simply a need for a concentrated cleaning session to remove built up copper and more importantly, carbon fouling.
I’ve had a few barrels that gave every indication of being shot out. But I ‘scoped them out and found the cause to be nothing more than requiring a good cleaning. They then returned to their usual performance. There’s no guessing involved when you are able to get ‘up close and personal’ using the scope. The borescope also provides an excellent view of the all-important condition of the crown. My borescope is one of the most valuable investments I’ve ever made.”
Here is a simple but effective product that can benefit varminters and game-hunters. The slip-on, padded RRR (“triple R”) gun rest cushions your rifle on any surface and helps eliminate noise when shifting the gun from one shooting position to another. The RRR slip-on rest is made of neoprene (wet suit material) with a built-in, thick Armaflex foam cushion on the bottom. This $26.95 sleeve protects the finish of your rifle, while providing a cushioned layer between your rifle and the supporting surface.
Key Benefits of the RRR Slip-On Padded Fore-Arm Rest
1. The RRR sleeve cushions your rifle. This helps to keep the shot from going high even when the rifle is placed on a hard surface.
2. The RRR sleeve quiets the gun. The padded, neoprene covering acts like a sound deadener even when you set the gun on a metal frame or hard surface.
3. The RRR protects the finish on the stock of your rifle from scratches when resting on hard surfaces.
Varminting for Fun — With Rimfires and Centerfires
One of the most fun things you can do with a rifle is to shoot varmints such as ground squirrels, prairie dogs, rockchucks, and groundhogs. There’s great satisfaction making a perfect hit on a critter that sends the beastie spinning in the air. Varminting also affords a great excuse to acquire more rifles, because it really does make sense to own and use multiple varmint rifles in various calibers.
Having multiple rifles on a varmint safari lets you preserve barrel life, and shoot lesser-recoiling calibers at the shorter distances. For example, with California ground squirrels, we like a .17 HMR inside 125 yards, then switch to a 20 Practical (20-223 Rem). For prairie dogs, you may want that 20 Practical, plus a nice .22 BR for 250-400 yards, and a .243 Ackley (or 6XC or 6mm CM) for long shots.
Seven Varmint Rifles — Rimfire and Centerfire
With 980,000 subscribers, the Backfire YouTube Channel is highly popular. The capable hosts provide honest, candid reviews. This video covers seven different varmint rigs. First off is the Air Arms TX 200 (00:25). Then the excellent .22 LR CZ 457 is featured (01:33), followed by a .223 Rem AR15-platform rifle (02:30). Next up is the .22 LR Christensen Arms Ranger 22 (03:40), which proved to be “crazy accurate”. Then the video showcases a Bergara Premier in 22-250 (04:20), an “excellent coyote gun that you could use on varmints as well”. Last up is the Ruger American Predator (05:20) in .17 HMR.
6XC Rifle Featured in Gunwerks Rockchuck Adventures
This Gunwerks video showcases varmint hunting in the Western USA. In this video Aaron Davidson and the Gunwerks crew try out some new rifles on some rockchucks. Most of the the rifles were suppressed but the host said the rockchucks took cover after the first shot, so this required good coordination among shooters and spotters. A 6XC varminter is featured at 2:44 and there’s some nice drone footage starting at 2:00.
6mmBR for Longer Range Varmint Adventures
The video creator reports “I spent a great deal of time deciding what 6mm cartridge I would pick for my next varmint build. I was sure of certain things. First, it had to fit an action that I owned. Most importantly, it had to be highly accurate, with light recoil. Quality, highly frangible bullets had to be available in the 50 to 70 grain weight range (for smaller to larger varmint hunting). For flat shooting ballistics, I wanted velocity above 3300 fps. I decided that the 6mmBR, with a slow twist barrel, was what I was looking for.” Components for this rifles are: Borden Alpine Action, Krieger Barrel, Grayboe Ridgeback Stock, Bix’N Andy Trigger, Thunderbeast Ultra Suppressor.
.22-250 Nails Ground Squirrels and Rock Hyraxes in South Africa
Here’s an interesting video from South Africa. The video maker starts with shots on ground squirrels. His .22-250 blasts them into little pieces. They he switches to more distant targets, a furry ground-hog size animal called the Rock Hyrax, Cape Hyrax, or Dassie. Mature Rock Hyraxes weigh 4-5 kilograms and have short ears and tail. These Rock Hyraxes are found at higher elevations in habitats with rock crevices, allowing them to escape from predators (but not skilled varmint hunters).
20 Practical — Great Choice for AR-Platform Rifle
If you want to use an AR-platform rifle in the varmint fields, consider getting a 20-caliber barrel chambered for the efficient, low-recoil 20 Practical cartridge. The 20 Practical is simply a .223 Remington necked down to 20 caliber. The parent .223 Rem cartridge of course works great in an AR, but the 20 Practical offers some notable advantages for high-volume varmint shooters. The 20 Practical cartridge is simply the .223 Rem necked down to 20 caliber — you can use standard .223 brass and load with standard.223 Rem dies. Just swap in a smaller expander and use smaller neck bushings.
The 20 Practical delivers very high velocity with very low recoil while still providing outstanding accuracy. The 20 Practical is great option for folks who favor “fast and light” — smaller, lower-mass bullets traveling at very high velocities. This little cartridge can launch 40-grainers at over 3900 fps.
.17 WSM — The Most Powerful .17 Cal Rimfire
We think that every varmint hunter should own a nice .17 Cal rimfire rig. Out to 200 yards or so the .17 WSM or .17 HMR is very effective on small varmints. It’s nice to be able to shoot affordable ammo out of the box and not have to scrounge for hart-to-find powder and primers. This video features a superb .17 Cal varmint rig, the Primal Rights TS Custom chambered for the impressive .17 WSM cartridge.
Prairie Dog Hunting with .17 HMR Savage A17 Rifle
On varmint excursions, we like to have a .17 rimfire for the closer shots, inside 150 yards. This video shows a successful Prairie Dog hunt with a .17 HMR. Watch and you’ll see hits out to 160 yards (00:50), proving the effective range of the .17 HMR cartridge. The host is shooting a Savage A17 semi-auto 17 HMR rifle in a Boyds laminated stock.
Varminters now enjoy three .17-caliber rimfire options. The .17 Mach 2, .17 HMR, and .17 WSM are all good choices, with the 17 Mach 2 (17 HM2) being the cheapest and the .17 WSM the most powerful. With a 3000 fps MV, the .17 WSM has some really impressive ballistics, — with a much flatter trajectory than both the .17 HMR and .22 WMR:
If you want to use an AR-platform rifle in the varmint fields, consider getting a 20-caliber barrel chambered for the efficient, low-recoil 20 Practical cartridge. The 20 Practical is simply a .223 Remington necked down to 20 caliber. The parent .223 Rem cartridge of course works great in an AR, but the 20 Practical offers some notable advantages for high-volume varmint shooters. The 20 Practical delivers very high velocity with very low recoil while still providing outstanding accuracy. The 20 Practical is great option for folks who favor “fast and light” — smaller, lower-mass bullets traveling at very high velocities. This little cartridge can launch 40-grainers at over 3900 fps, and 32-grainers even faster. This makes the 20 Practical a great choice for an AR-based varmint rifle.
20 Practical Ultimate Varminter
Over a decade ago, as a “proof-of-concept”, AccurateShooter.com created a 20 Practical AR15 Ultimate Varminter with a custom 20-caliber upper from Robert Whitley of AR-X Enterprises, LLC. That project rifle was ultra-accurate — every 5-shot group out of the gun was less than the size of a dime. That gun was auctioned off, but Robert Whitley produced many other 20 Practical AR15 uppers. (The 20 Practical cartridge is simply the .223 Rem necked down to 20 caliber — you can use standard .223 brass and load with standard.223 Rem dies. Just swap in a smaller expander and use smaller neck bushings.)
Robert learned that the accuracy of the first 20 Practical AR15 was no fluke. After building six (6) more 20 Practical uppers, he tested them for accuracy and they all shot great. These uppers featured DPMS low-pro receivers with side-charging handles. They are fitted with PacNor 1:11″ twist, 3-groove stainless barrels. Three of the uppers had 24″ barrels, two had 20″ barrels, and one had an 18″ barrel (See below).
Robert reports: “We [made] more 20 Practical AR15 uppers and I have to say I am astounded by the accuracy of [all those uppers]. For shooting little tiny groups out of an AR15 with bullets going 3500+ fps, it’s hard to beat the 20 Practical cartridge.”
In four of these uppers I shot re-sized Winchester brass using 25.3 grains of WC844 powder with Berger 40gr BTHP bullets loaded at 2.225″ OAL (about .015″ off the lands). WC844 is inexpensive military surplus powder that is nearly identical to H335. I tried three different primers and the choice did not seem to matter (CCI BR4, Rem 7 1/2s and Win Small Rifle — the old silver ones). All these four uppers shot great.”
Below is an animated GIF with targets from uppers #6, 10, and 11. All groups are mag-fed, 5-shot groups shot at 100 yards using a front rest and rear bag.
Targets Shot with Three Different 20 Practical AR Uppers
20 Practical Shooters Explain Why They Love this Little Cartridge
A popular thread in our Shooters’ Forum focuses on favorite variants of the .223 Rem cartridge. The thread asks: “What is your favorite and most versatile round that you have made from a .223 Rem parent case?” Many cartridges were named, but the wildcat cartridge cited most often was the 20 Practical. Here are some comments by Forum members, who explain the appeal of this great little 20-caliber cartridge:
“The 20 Practical is just a hoot to shoot. Outstanding precision, minimal recoil, easy case forming and inexpensive to shoot. What’s not to like?” — JLT
“The 20 Practical for me. Never had as much fun shooting a rifle as I did with the 20 Practical. Also, [it is] the easiest wildcat to form. Just get cases, a couple of bushings to get the right neck tension, and you are shooting.” — NMKid
“My favorite was and is the 20 Practical. No fire-forming, no neck-turning, and with the increased BC of the 20 Cal bullets, it’s hard to wipe the smile off your face in a prairie dog town[.]” — Region Rat
“20 Practical and the [original] .223 Rem are my favorites. Accurate, cheap to shoot. The 20 Prac allows you to see your hits and it’s fast.” — Alguapo
Smart Tips on Forming 20 Practical Cases
Varmint ace Warren B, aka “Fireball” in our Forum, explains how to form 20 Practical Cases. “Forming 20 Practical cases is very easy and no fire-forming is required. Start with any good quality .223 Rem brass. One can simply run the case into your bushing die with the appropriate bushing and call it done. I however like to make it a little more involved by doing the neck reduction in steps. I find that taking steps doesn’t overwork the brass as much as one step does. Also, if you resize the neck in too large of a step, sometimes, depending on the neck thickness, the neck will not be dimensionally what you would expect when finished. This is especially important towards the last step when one is getting close to the final required neck diameter.
For my cases the first thing I did was to run them into an old RCBS .223 Rem full length die with the decapping assembly removed. This will take care of any dented necks on the raw cases and bring the necks down to around 0.243″. Since all standard full-length dies oversize the necks way too much, starting with a .223 FL die actually reduces the neck diameter quite a bit — and obviates the need to buy an extra bushing for the first step. I then use my Redding Type-S die with two bushing sizes to get down to where I need to be. In other words, I start with the FL sizer, then move to a Type-S with a 0.233″ bushing and finish with a 0.228″ bushing. I use progressively smaller increments in size between the reductions.”
Efficient Loading of 20 Practical Cartridge
The beauty of the 20 Practical as a cartridge is its simplicity. You can start with .223 Rem brass, and use .223 Rem dies with minor modifications. No special case-forming dies are necessary. To prepare the brass, all you need is a .223 Rem bushing die with .233″ and .225″ bushings, plus a 20 Cal decapping rod assembly, Redding part #14206. First remove the .223 Rem decapping assembly and replace it with the 20 Cal decapping rod assembly (the same assembly used with Redding .204 Ruger dies). Put the .233″ bushing in a Redding Type ‘S’ bushing die and run your cases through for a first pass. Then swap in the smaller .225″ bushing for the second pass. Now your brass is sized and ready for loading.
You can seat bullets using a regular Redding, Whidden, Lee, or Hornady .223 Rem seating die with no mods. Use the .225″ bushing for neck sizing for all subsequent loadings once the cases have been necked down the first time. It is simple and easy.
In the above video, Robert Whitley shows how to neck down .223 Rem brass using two bushings in sequence. Then seats a bullet with the Redding Comp Seater die. To save time in the video, Robert skipped the steps of adding primer and powder. But those steps require no special equipment for the 20 Practical.
20 Practical vs. 20 Tactical
Varminter Kevin Weaver, who shoots both the 20 Practical and 20 Tactical, states that: “Both the 20 Tactical and the 20 Practical are fine .20 caliber cartridges. However, my favorite would be the 20 Practical. The 20 Practical gives the SAME performance as the 20 Tactical without fire-forming, or having to buy expensive forming dies.
So with the 20 Practical you do less work, you shell out a lot less money, yet you give up nothing in performance. What’s not to like? To create 20 Practical cases, just buy a .223 Rem Redding Type “S” Bushing Die set with a .230 or .228 bushing and have fun with this great little cartridge.
The 20 Practical and the 20 Tactical are almost identical cartridges. There are only slight differences in case outside diameter, shoulder angle, and case body length. Neck length on the 20 Tactical is a bit longer, but there is still plenty of neck on the 20 Practical to grip the popular bullets, such as the 32gr V-Max.”
20 Practical and 20 Tactical Specifications:
Cartridge
Bolt face to shoulder
Shoulder O.D.
Shoulder Angle
Total length
20 Practical
1.5778″
.3553
23°
1.760″
20 Tactical
1.5232″
.360
30°
1.755″
Parting Shot — Yes the 20 Practical works in Bolt Guns too!
“Favorite .223 Rem Wildcat? The 20 Practical hands down for me. I have two of them built on Savage actions right now. One has a 20″ BHW barrel and the other has a 26″ Criterion. It is my go-to caliber for shooting up a Prairie Dog town and the ones I have are insanely accurate. Here are some typical 100- and 200-yard groups with my 20 Practicals.” — IA_Shooter
The .17 Hornady Magnum Rimfire (HMR) was introduced in 2002 by Hornady as a high-velocity, rimfire cartridge derived from the .22 Magnum case necked down to .17-caliber. Designed for precision and flat trajectory, the .17 HMR gained popularity among varmint hunters and target shooters for its good accuracy and hitting power out to 200 yards or more. Standard .17 HMR ammo typically fires a 17-grain V-MAX or TNT hollow point bullet at speeds around 2550 FPS, offering explosive impact on small game while maintaining low recoil.
Compared to other rimfire cartridges like the .22 LR or .22 WMR, the .17 HMR offers superior ballistic performance, including flatter trajectories and higher energy at extended distances. It’s good for shooting prairie dogs, ground squirrels, rabbits, and even coyotes under the right conditions. While not as powerful as some centerfire varmint rounds, its blend of affordability, velocity, and accuracy makes the .17 HMR an outstanding choice for precision-minded rimfire shooters. Popular manufacturers like CCI, Hornady, Winchester, and Federal produce a wide variety of loadings, from polymer-tipped hunting rounds to jacketed hollow points, making it easy to tailor your ammo choice to your specific shooting needs.
.17 HMR Ammo DEALS — CCI, Hornady, Remington, Winchester
Things to Know about .17 HMR Ammunition
Bullet Type & Weight: The standard bullet weight for .17 HMR is 17 grains, with options up to 20 grains for improved wind resistance and penetration. Polymer-tipped bullets expand rapidly on impact, while jacketed hollow points (JHP) offer deeper penetration.
Which is more powerful, .22 Mag or .17 HMR? While the .22 WMR (Magnum) may offer slightly more raw energy, .17 HMR delivers superior velocity and flatter trajectory, giving it better accuracy at long distances. For precision shooting, .17 HMR generally has the edge.
How does .17 HMR ammo compare to other rimfire cartridges? Compared to .22 LR or .22 WMR, .17 HMR shoots flatter, faster (typically 2500+ fps), and with greater accuracy at extended distances. It’s a top choice for rimfire shooters who demand high performance beyond 100 yards.
What is the effective range of .17 HMR? Good .17 HMR ammo is highly accurate up to 150–200 yards for small game and varmints. Some experienced shooters can push it beyond 200 yards with the right optics and wind conditions.
What is the best barrel length for .17 HMR rifles? A barrel length between 20–22 inches is optimal for .17 HMR, balancing velocity, maneuverability, and accuracy. Shorter barrels are lighter but may lose some velocity, while longer barrels offer slightly better ballistics at the cost of weight.
Is the .17 HMR good for beginners? Yes .17 HMR has low recoil, flat trajectory, and simple handling for new shooters. It’s an easy-shooting round that offers good performance with low recoil.
.17 HMR and .22 WMR Options Enhance Ruger Precision Rimfire for Varmint Work
Many readers may not know this, but the Ruger Precision Rimfire rifle is available in three rimfire chamberings: .22 LR, .17 HMR, and .22 WMR. While .22 LR ammo is considerably cheaper, .17 HMR and .22 WMR shoot flatter and deliver MUCH more energy. These .17 HMR and .22 WMR chamberings are way more suitable for varminting. In fact we think this .17 HMR transforms the Ruger Precision Rimfire into a very good “carry-around” varmint rifle. We really like the .17 HMR — it’s our favorite rimfire cartridge for small varmints out to 160 yards.
Both cartridge types, .17 HMR and .22 WMR, also offer higher velocities, less wind drift, and flatter trajectory than the .22 LR. This is a benefit when cross-training. You can shoot at more distant targets with considerably less elevation dialed in your scope. And the windage corrections will be less extreme.
Ruger says: “Faster, flatter and with high-performing bullets, .17 HMR and .22 WMR cartridges expand the capabilities of the Ruger Precision Rimfire platform. Like its .22 LR predecessor, these new magnum offerings maintain the same ergonomics, trigger and manual of arms as the larger centerfire Ruger Precision Rifle.”
Here’s an excellent video review of the .17 HMR Ruger Precision Rimfire rifle by YouTuber 22 Plinkster. The reviewer was impressed with the rifle’s accuracy with 17gr ammo.
Both Ruger Precision Rimfire rifles feature 18″ hammer-forged barrels threaded for muzzle devices, including the Ruger® Silent-SR®. The 15″ free-float handguard with Magpul M-LOK slots provides generous scope clearance and easy mounting of M-LOK-compatible rails and accessories.
Like its .22 LR version, the magnum Ruger Precision Rimfire models featured an adjustable bolt throw (that can emulate a centerfire action if desired), along with trigger that adjusts from 2.25 to 5 pounds. The .17 HMR and .22 WMR models ship with a 0 MOA Picatinny rail and one, 15-round BX-15 Magnum magazine or one, 9-round JMX-1 rotary magazine. The BX-15 Magnum mag works very well with the .17 HMR and .22 WMR chamberings.
The standard finish for the .17 HMR and .22 WMR Ruger Precision Rimfire rifles is Black hard-coat anodized. But there is also a Burnt Bronze Cerakote Special Edition available through Iron Valley Distributor.
This custom war wagon hauls varmint hunters around the Longmeadow Game Resort in Colorado.
Today is May Day, May 1st, so we are well into springtime. The woes of winter are behind us. For many shooters, Spring is a great season to head out to the varmint fields. Here are six items that can help ensure successful spring varmint adventures.
Six Great Products for Varmint Shooters
1. BarrelCool In-Action Fan
Busy Varmint shooters may expend hundreds of rounds in a day. That’s tough on barrels. One way to extend your round count is to use the ingenious BarrelCool device. This little yellow gadget fits in your action with a blower tube that goes into the chamber. A small electric fan blows cooling air through the barrel. It really works — folks who’ve purchased the $44.95 Barrel Cool and run temp strips on their barrel say the BarrelCool can significantly reduce the time it takes to cool down a hot barrel.
In the past, folks have tried various methods to cool barrels: water flushed through the bore, CO2 tanks, even battery-operated fish pumps. BarrelCool is a simpler, less costly, and much handier solution. Priced at $44.95, this small device can potentially can save you money by extending barrel life. To see how Barrelcool works, watch the video below:
2. Uncle Bud’s Bulls Bag Sandbag
On most varmint hunts we spend most of the time shooting from a portable bench with a pedestal-type rest (we like the SEB Mini). But it’s nice having a big, heavy X-Type sandbag rig also. These four-chamber designs, such as the Uncle Bud’s Bulls Bag, allow shooting from a truck hood or any flat surface. Some rifles with narrow fore-ends really benefit from the firm “hug” provided by these “butterfly” style sandbags. We like the 15″ Uncle Bud’s Bulls Bag, currently $80.00 at BullsBag.com (khaki/suede). Durable and well-made, it will provide years of service. There is also a 10″ version that is easier to carry, starting at $62.00. Forum member Stoner24mkiv likes a Bulls Bag for shooting from a vehicle. He also suggests: “[take] an adjustable bipod if you are going to do any walking. Have a fanny pack or backpack for extra ammo, water, bore-snake, etc. when you go on your walkabouts. Bring a Boonie hat for blocking the sun, sun glasses, sunscreen. High leather boots.”
3. Burris Scope with Built-In Laser Rangefinder
The Burris Eliminator is an impressive piece of electro-optical technology. With a push of a button, a built-in laser rangefinder senses the distance to your target and the Eliminator’s microprocessor instantly calculates the required hold-over based on your load’s ballistics. The calculated aiming point is then displayed in the reticle with an illuminated red dot on the vertical cross-hair. Just put the red dot on the target and make the shot. Easy as that. If you are working a large prairie dog field and constantly moving near to far and back again, this scope is really handy. We’ve used the Eliminator III out to 500 yards on small steel targets and it worked flawlessly.
Right now you can get the 5-20x50mm Burris Eliminator V model for $1183.99 on Amazon (#ad — you must add to cart to see this price). Or you can get the 4-16x50mm Burris Eliminator III model for $1167.40 on Amazon (#ad). Note: the Eliminator V has been replaced by the compact Eliminator 6, but that newer model costs $2499.99. The Eliminator III and V both offer better value for the price.
4. Hornady 17 HMR V-Max Loaded Ammo
For those distant prairie dog shots, you’ll want a centerfire round with some reach, such as a 22 BR or 22-250. However, for closer work, or for smaller varmints such as ground squirrels, the 17 HMR is hard to beat. There are many good factory rifles chambered for the 17 HMR, such as the Savage A17 (shown below). Right now Hornady 17 HMR ammo is on sale at AmmoASAP.com for $12.05 ($0.24 per round). That’s a good deal. This same ammo sells elsewhere for up to $18.00 per 50-round box. NOTE: Hornady also offers 17 HMR ammo with 20gr XTP hollow-point bullets. Both types work well.
5. Stick-On Temp Strips Monitor Barrel Heat
You never want your barrel to get too hot. Accuracy suffers when barrels over-heat, and excessive heat is not good for barrel life. So how do you monitor your barrel’s temperature? You can check if the barrel is “warm to the touch” — but that method is not particularly precise. There is a better way — using temperature-sensitive strips. McMaster.com (an industrial supply house) offers stick-on temp strips with values from 86° F to 140° F. A pack of ten (10) of these strips (item 59535K13) costs $12.66 — so figure it’ll cost you about $1.27 per barrel for strips. That’s cheap insurance for your precious barrels. For best barrel life, try to stay under 120 degrees F.
6. Low-Fouling Power for High-Volume Varmint Loads
For high-shot-count varmint safaris, you want a clean-burning powder that minimizes barrel fouling. While there are many great powders for the .223 Rem, we like Hodgdon CFE 223 for high-volume varmint loads. This powder really seems to keep barrels cleaner. Originally developed for U.S. rapid-fire military systems, CFE 223 incorporates a proprietary chemistry named “Copper Fouling Eraser”. Based on tests with extended shot strings, Hodgdon claims that, by using CFE™223 varmint hunters, match shooters, and AR shooters can maintain accuracy for longer periods, with less barrel-cleaning time.
Howa Model 1500 Mini Action rifles are popular with hunters and varminters. These rifles have smooth actions, very good 2-stage triggers, are lighter than most rifles, and are very affordable. And now Mini Action rifles are offered in the modern 22 ARC cartridge. Developed for the AR-15 and small actions, the 22 ARC is efficient and allows use of high-BC bullets in a very compact action. We think the 22 ARC is a great choice for a field-carried varmint rifle.
The Howa Mini Action series has been offered with a half-dozen chambering options and now the 22 ARC is available — a very good option for varmint shooting and small game. Hornady claims the 22 ARC outperforms all .22-caliber cartridges in its class. In the Mini Action, the 22 ARC rivals 22-250 performance, has dual-purpose match and varmint applications and is designed to take advantage of today’s long ogive, high-BC bullets with a variety of ammo offerings available from Hornady. Along with the 22 ARC, HOWA Mini Action rifles are offered in .223 Rem, 7.62×39, 6.5 Grendel, 6mm ARC, 350 Legend, 300 Blackout.
Howa 22 ARC Mini Action Features and Options:
Barrel Options: 22″ Steel, 20″ Light Varmint Steel, or 20″ Carbon Fiber Barrel (all 1:7″ twist). Threaded barrels are suppressor-ready.
Receiver (Action): Compact machined receiver with forged one-piece bolt and tool-less firing pin removal
Stock Options: Synthetic OD, Black & Yote dip, Walnut, Carbon Fiber, or APC Chassis
Trigger: Excellent two-stage trigger with 3-position safety
Magazine: Standard 5-round detachable magazine
HOWA Mini Action bolt is 09″ shorter than a short action, and 1.4″ shorter than a long action.
About the 22 ARC Cartridge
The 22 ARC (Advanced Rifle Cartridge) is a compact cartridge that fits into an AR-15 but is equally at home in a bolt action. The modern catridge shape is efficient and allows longer bullets to be fitted. The case capacity and sized offers performance, that rivals the 22-250. This makes the 22 ARC a good choice for varminters who want something with more punch than a .223 Remington case.
Hornady states: “The 22 ARC was engineered to use modern, high-BC bullets. Designing the cartridge and chamber in unison provides consistent accuracy, great velocity spreads and an outstanding shooting experience. This cartridge is the result of careful and meticulous design, following the same proven methodology as the highly acclaimed 6mm ARC.”
The 22 ARC is tailored to fit the AR-15 platform with a maximum overall length of 2.260″. In both ARs and bolt guns such as the Howa Mini, the cartridge should feed and function very well.
This custom war wagon hauls varmint hunters around the Longmeadow Game Resort in Colorado.
We’re at the height of summer now — summer Solstice was on June 20, 2024. Will you be heading to the varmint fields this summer? Proper planning is key to a safe, satisfying, and productive varmint holiday. Of course you’ll be busy reloading, but you should make a check-list of all the gear and supplies you need. Bring a variety of rifles if possible — you’ll need to switch off as one barrel gets hot, and the chambering that works best for your close shots may not be ideal for those longer shots out past 400 yards.
Here are some tips from our Forum members that can help you shoot more effectively, and avoid problems on your varmint hunt. Here’s one key tip: at your shooting station, put a strip of surveyor’s tape on a tall stake to show the wind direction. Then shoot in the direction the wind blows. This will minimize the effect of cross-winds.
This photo is from a Dan Eigen TV Show video featuring a P-Dog hunt.
Varmint Safari Planning, Equipment, and Shooting Advice
From PatchHound: “The gear you bring will make or break a trip out to Prairie Dog land. A lot has to do with where you going and how far you are from [civilization]. For starters, bring lots of water. It will be hot in Wyoming in a few more weeks but it don’t hurt to bring warm clothes in case it snows. It’s best to wear leather boots unless you’re real good at dodging cactus while walking around. Good sunscreen [and a wide-brimmed hat] will save the day too. [What you need to bring] really depends on whether you’re shooting on some friendly ranch or 100 miles in the middle of [a wilderness area]. Good survival gear is a good thing to have for the latter!”
From Stoner25mkiv: “I’d suggest an adjustable bipod if you are going to do any walking. A laser rangefinder is a huge asset. Have a fanny pack or backpack for extra ammo, water, bore-snake, etc. when you go on your walkabouts. We also take a couple pivoting benches, heavy movers’ pad/blanket, sandbags (Uncle Bud’s Bulls Bag) for shooting from near the vehicle. Boonie hat for blocking the sun, sun glasses, sunscreen. High leather boots.
From CTShooter: “The .204 [Ruger] is a laser beam and good to 400 yards easy. Forget the rimfire! Do you have a portable bench that pivots? Bring bipod, binocs. Bring a LOT of water. I have a milspec sniper shooter’s mat/drag bag with shoulder straps. It is good to carry everything when you want to wander off and shoot prone with bipod. Here’s a view through my 6BR in ND.”
From RJinTexas: “In most of the locations that we’ll be shooting we’ll usually set up a minimum of 200 yards from the edge of a major dog town. We’ll start by working over the close-in dogs and shooting our way out, some of these towns may run in excess of 500/600 yards deep. [A .204 Ruger] will work well out to 300/400 yards unless the wind is blowing hard. We classify a 10-mph crosswind as a very calm day and what makes it a little more challenging is that it is usually also gusting.”
From Wes (P1ZombieKiller): “[For my first PD trip] there are so many things I was not ready for. The one thing that I did bring (that no one told me about) was a canopy. I’m glad I did. Even though the weather was [near perfect], I know that sun can humble you real fast. With my pop-up canopy, I could shoot all day without getting killed by the sun. You had to tie the canopy down real well or the wind would blow it across the pasture.
We sat on shooting benches that pivot 360°, and are fast and easy to set up. Most all shots were 175-250 yards. I just felt comfortable at that range. It was more fun for me to be able to film the hits, and the camcorder I was using just did not get good video past 350 yards. The digital zoom distorted the image too much. I knew I would only get this one chance to film my first P-dog outing, and I wanted to get it on film for [posterity].”
Bring Multiple Rifles on Your Varmint Adventures
On our P-Dog adventures, we like to have multiple rifles — a .17 HMR for close work, then maybe a .20 Practical AR for 150-250 yards, then a larger caliber such as 22 BR, 6BRA, 6 Dasher or 6-6.5×47 for those long shots. The classic .22-250 is also a wickedly effective varmint cartridge.
We like to have a Rimfire varmint rig for the closer shots, inside 150 yards. The .17 HMR or .17 WSM are good choices. With a rimfire you save on ammo costs and you don’t waste precious centerfire barrel life. This video shows a successful Prairie Dog hunt with a .17 HMR. Watch and you’ll see hits out to 160 yards (00:50), proving the effective range of the 17 HMR cartridge. The host is shooting a Savage A17 semi-auto 17 HMR rifle in a Boyds laminated stock.
.17 WSM Rimfire in Franklin Armory F17-L
What’s the ultimate rimfire varmint rifle? An AR chambered for the .17 WSM could be the answer. Eric Mayer of Varminter.com states: “The Franklin Armory F17-L in .17 Winchester Super Magnum (WSM) has a lot of firsts. It is the first semi-automatic rifle in .17 WSM now available to the general public. It is the first gas-piston system, AR-15 rimfire rifle built in partnership between Franklin Armory and Osprey Defense.”
Eric has used the .17 WSM AR shooting ground squirrels, rock squirrels, prairie dogs, and rabbits. Eric notes: “The report of the .17 WSM is nowhere near as loud as most of the centerfire [varmint] cartridges. I found that when I shot the FA-17, it did not cause the other ground squirrels… to run for cover. The lack of recoil … allowed me to see right where I hit [and] if I happened to miss, [low recoil] made for quick corrections for wind, or distance.” READ Full Report
The .17 WSM is a much larger, more powerful round than the .17 HMR. See the size difference above.
.20 Practical (20-223 Rem) AR-Platform Varminter
Here is a .20 Practical built by Robert Whitley. Whitley’s Ultimate Prairie Dog Rifle (PDR) features a 24″ Bartlein 1:11″-twist cut-rifled barrel, DPMS side-charging upper, and a Jewell trigger. It is chambered in 20 Practical, a cartridge popularized by Warren “Fireball” Brookman.
This .20 Practical cartridge is simply the .223 Remington necked down to .204. You can use your existing .223 Rem brass — no special case-forming required! The 20 Practical is accurate, flat-shooting, and has almost no recoil. The advantage over the standard .223 Remington is that, grain for grain, the bullets have a higher BC and travel at a higher velocity for more dramatic effect on a small varmint. The ultra-low recoil allows you to easily see your hits, even without a muzzle brake. The 20 Practical, launching 40-grainers at about 3750 fps, shoots flatter than a .223 Rem with 55gr hollowpoints.
.204 Ruger AR-15 (Suppressed) for Cottontail Rabbit Hunting
As a varmint hunting tool, the .204 Ruger in an AR-15 is a versatile, worthy cartridge/rifle combo for the job. This video covers a cottontail rabbit hunt. The host states that “We were contacted by a farmer who was being slammed with cottontail rabbits eating out huge portions of his alfalfa fields.” This suppressed .204 Ruger AR-15 proved seriously effective on the rabbits, driving high-velocity rounds with impressive accuracy. See more details on the Varminter.com website.
.22 BR Savage Varminter — Accuracy on a Budget
This .22 BR Savage, with upgrades from Sharpshooter Supply, is the “pride and joy” of Forum member Maynard. Note the heavy-contour custom barrel with brake. That .22 BR cartridge is a very effective choice for varmint work, as the ground hog in the photo proves. The .22 BR and .22 Dasher are capable of outstanding accuracy with a large variety of bullets and powders. A .22 Dasher can rival the ballistics of a 6mmBR out to 500+ yards, but with reduced recoil.
Avid varmint hunter Bill White (aka “CT10Ring” in our Forum) concurs about the effectiveness of the .22 BR Cartridge: “.22 BR — My .22 BR is my first choice for most prairie dog missions. Accuracy is superb with necked-down 6mmBR Lapua brass — quarter-MOA and blazing fast. With the right twist rate, this chambering can shoot anything from 40gr FB bullets to 80gr VLDs. Load development is easy. Below is my .22 BR ammo for another varmint trip. I use 55gr Sierra BlitzKings with Varget in my 1:12″-twist Shilen-barreled rifle. 60gr Bergers are very accurate with a fairly flat trajectory for useful distances.”
6mm Dasher for Voldoc’s 2024 Prairie Dog Safari
Respected Forum member Voldoc has a long thread about his 2024 Prairie Dog Safari, his 20th trip of this kind. He reported: “After the 1st day of shooting with 30+ MPH wind, we settled down on a High Point, and set up the Benches the second day for a ‘Shooting Gallery’ of non-stop shooting. PDogs were in play from 125 to 1,000 yards.” Voldoc’s rifle features these components: Nesika J RBRP action, 1:12″-twist Krieger barrel chambered by Mike Bryant for the 6 Dasher, 2 oz. Jewell trigger, Thunder Beast Suppressor, Nightforce ATACR 7-35X FFP optic. He usually shoots 87gr V-Max bullets in annealed Lapua brass pushed to 3240 FPS by Vihtavuori N135 powder. To spot critters, Voldoc uses Vortex Fury 5000 AB Rangefinding Binoculars.
More Power — 6-6.5×47 Lapua for Longer Range Varmint Shots
Soon after Lapua released the 6.5×47 cartridge, wildcatters recognized the potential of a necked-down 6mm version of the case. The 6-6.5×47 has emerged as a great, do-it-all cartridge that performs well in High Power competition, 600- and 1000-yard benchrest, and PRS tactical matches. But the 6-6.5×47 is not just for paper-punching. An efficient cartridge with great inherent accuracy, the 6-6.5×47 can be an excellent, flat-shooting, long-range varmint round. Here we feature Stan Stewart’s BAT-actioned 6-6.5×47 varminter. Fitted with a Krieger 1:10″ barrel, Stan’s rifle excels with a wide variety of varmint bullets. Whether driving 70-grainers at 3700 fps, or pushing the Berger 88gr High-BC FB bullet at 3400 fps, this 6-6.5×47 delivers half-MOA (or better) accuracy, in a well-balanced, easy-handling rifle. He has developed very accurate loads with Varget, Vihtavuori N550, and Reloder 15.
Six Tips for Novice Long Range Varmint Hunters
1. Take twice as much ammo you think you may need. The fields could be particularly rich, or, because of wind or other variables, you may have far more misses than expected.
2. When possible, set up with the wind at your back (or, alternatively, directly ahead). This will minimize the effect of cross-winds. Set up a stake with a ribbon to show wind direction.
3. Bring at least two rifles. Ideally one would be a low-recoil rifle with cheaper components for the closer shots. Then bring a rifle with higher-BC bullets for longer shots where wind is a bigger factor.
4. Check the weather before you head out. Prairie dogs like sunshine and calm conditions. If a cloudy, very blustery day is predicted, considering staying in town and cleaning the rifles.
5. Bring plenty of water on a trip. An adult male should be drinking at least 64 ounces of water (or other liquid) every day — more if it’s very hot or you are sweating a lot.
6. Preferably always hunt with a companion. If you do go out solo, have a Garmin inReach SatComm/GPS for emergencies if there is no cell coverage in your location.
Can sustained rapid-fire shooting with no cool-down period wear out a quality barrel more quickly? The answer is “Yes” according to Forum member LCazador, who did an interesting comparison test with two .243 Winchester barrels. He started off with two, identical, match-grade HV taper stainless barrels. Both were NEW at the start of testing, and LCazador shot the same load through each: 95gr match bullets with 38 grains of Hodgdon Varget. After giving both barrels the same, gentle 20-round break-in, 300 rounds were then fired through each barrel — in very different ways. Barrel condition and wear were monitored with a borescope.
Barrel One — Slow Fire, Cool Down Periods, Cleaning Every 50 Rounds
At the end of the 300-round test, Barrel One looked brand new. There was none of the severe fire cracking found in Barrel Two. This barrel was shot no more than 10 times without a cool down and firing was done at a much slower pace. Cleaning for this barrel was done every 50 shots.
Barrel Two — Fast Firing, No Waiting, Cleaning Every 100 Rounds
The second barrel, which received hard use and minimal cleaning, was severely damaged with severe fire cracking at the leade and throat. As a result, the barrel had to be re-chambered. This barrel was shot 100 rounds at time without cleaning and was shot up to 20 times in succession without a cool down.
LESSON LEARNED — Heat Kills Barrel Life
Don’t let your barrel get too hot, and keep it clean. One afternoon can ruin a barrel!
Monitoring Barrel Wear with Borescope
Some folks worry too much about what their borescopes reveal — many barrels do not have to be “squeaky clean” to perform well. In fact some barrels run better after ten or more fouling shots. However, a borescope can be very helpful when your barrel starts losing accuracy for no apparent reason. Forum member FdShuster writes:
“A borescope is a positive way of backing up your suspicions when the rifle starts to throw an occasional (soon followed by more frequent) wild shot. Using the scope is also an excellent way to determine that the cause is barrel wear and not simply a need for a concentrated cleaning session to remove built up copper and more importantly, carbon fouling.
I’ve had a few barrels that gave every indication of being shot out. But I ‘scoped them out and found the cause to be nothing more than requiring a good cleaning. They then returned to their usual performance. There’s no guessing involved when you are able to get ‘up close and personal’ using the scope. The borescope also provides an excellent view of the all-important condition of the crown. My borescope is one of the most valuable investments I’ve ever made.”
Monitoring Barrel Wear with Borescope
20 Practical Ultimate Varminter
Robert learned that the accuracy of the first 20 Practical AR15 was no fluke. After building six (6) more 20 Practical uppers, he tested them for accuracy and they all shot great. These uppers featured DPMS low-pro receivers with side-charging handles. They are fitted with PacNor 1:11″ twist, 3-groove stainless barrels. Three of the uppers had 24″ barrels, two had 20″ barrels, and one had an 18″ barrel (See below).
Varmint ace Warren B, aka “Fireball” in our Forum, explains how to form 20 Practical Cases. “Forming 20 Practical cases is very easy and no fire-forming is required. Start with any good quality .223 Rem brass. One can simply run the case into your bushing die with the appropriate bushing and call it done. I however like to make it a little more involved by doing the neck reduction in steps. I find that taking steps doesn’t overwork the brass as much as one step does. Also, if you resize the neck in too large of a step, sometimes, depending on the neck thickness, the neck will not be dimensionally what you would expect when finished. This is especially important towards the last step when one is getting close to the final required neck diameter.
Varminter Kevin Weaver, who shoots both the 20 Practical and 20 Tactical, states that: “Both the 20 Tactical and the 20 Practical are fine .20 caliber cartridges. However, my favorite would be the 20 Practical. The 20 Practical gives the SAME performance as the 20 Tactical without fire-forming, or having to buy expensive forming dies.
The .17 Hornady Magnum Rimfire (HMR) was introduced in 2002 by Hornady as a high-velocity, rimfire cartridge derived from the .22 Magnum case necked down to .17-caliber. Designed for precision and flat trajectory, the .17 HMR gained popularity among varmint hunters and target shooters for its good accuracy and hitting power out to 200 yards or more. Standard .17 HMR ammo typically fires a 17-grain V-MAX or TNT hollow point bullet at speeds around 2550 FPS, offering explosive impact on small game while maintaining low recoil.
.17 HMR and .22 WMR Options Enhance
From Wes (P1ZombieKiller): “[For my first PD trip] there are so many things I was not ready for. The one thing that I did bring (that no one told me about) was a canopy. I’m glad I did. Even though the weather was [near perfect], I know that sun can humble you real fast. With my pop-up canopy, I could shoot all day without getting killed by the sun. You had to tie the canopy down real well or the wind would blow it across the pasture.
Respected Forum member Voldoc has a long thread about his 
Monitoring Barrel Wear with Borescope
