With the variety of rimfire disciplines, from cowboy action to Olympic three-position smallbore, there are countless different rimfire designs on the market — bolt guns, lever guns, single-shots, toggle-links and more. These may shoot the same ammo, but they certainly vary in looks and ergonomics. This is testimony to human creativity.

In our Shooters’ Forum, you’ll find a long-running thread showcasing rimfire rifles for plinking, hunting, 3P Target Shooting, Silhouette, Rimfire F-Class, NRL22 and more. Here are some of the notable recently-posted rifles in that Forum thread, with brief build/component details.

ARA Benchrest Rifle with Stiller Action, Shilen Ratchet Barrel

Forum member Peebles24 showcased his cool flame-paint-job .22 LR benchrest rifle against a scenic, snowy background (never too cold to shoot right?). “I had a new rifle built this past fall by Mark Penrod at Penrod Precision. Stiller 2500X action, Shilen ratchet barrel, Jewell trigger, McMillan stock, Harrell’s tuner, Sightron SIII 10-50×60mm glass. I’m shooting it off my Arnold Machine one-piece rest made locally by Cliff Arnold. I visited the Lapua Testing Center East and got a case of Midas+.” For ammo testing results, click photo at right.

In late April the gun competed in its first ARA benchrest match in Wabash, Indiana.

Beautiful MasterClass-Stocked Rifle for Rimfire F-Class

Here is a handsome rifle belonging to Forum member Redd. Set up for prone Rimfire F-Class-style competition, this rig features a Shilen Ratchet barrel with Erik Cortina Tuner fitted to a Stiller 2500X action. It boasts a beautiful MasterClass figured Walnut stock and rides on a SEB Joy-Pod bipod up front. The optic is a Nightforce 40x45mm Competition.

CZ 457 .22 Magnum Transformed with KRG Bravo Stock

Forum member JAS-AS purchased a .22 Magnum CZ which he revived as a training rig with a new stock. He posted: “I use a CZ457 in .22 Magnum mainly as a trainer — bipod and rear bag kind of stuff. It has evolved over the last year or so. Next change will be a Lilja barrel. This because it can shoot brilliantly (at times) but not consistently. And accuracy degrades as it gets minimally dirty. Also, it doesn’t like 40gr rounds — the groups open up to 1.5 MOA. It’s at its best with 30 and 35 grain rounds running at up to 2250 fps. I believe that to be a twist-rate issue.”

The “Before” photo shows the rifle “as purchased” with a Nikon Monarch 4-16x42mm mildot scope. The “After” image shows the CZ 457 as modified. JAS-AS notes: “I added a bunch of stuff: KRG Bravo stock, Vortex Strike Eagle 5-25x56mm FFP scope, new bipod and Precision Underground bag, trigger spring. With this setup I shoot at 100 yards+ exclusively.” Show at right is a 9-shot group with the rifle at 100 yards. Three-shot groups at 100 have been below half-MOA.

Savage Mark II Squirrel/Field Rifle

This Savage Mark II rifle isn’t fancy, but it has brought much satisfaction to its owner, Forum member “Ohio Varmint Shooter”. He posted: “Just a nice field gun. Less than $200 (without scope). Cheap wooden stock, thin pencil barrel. My squirrel/field gun. There is absolutely nothing special about this… except it’s lefthanded. It shoots fine, preferring CCI standard velocity rounds. I did splurge and put a more-than-needed scope on it. Most scopes with fixed parallax (in this category), have it fixed at 50 yards. I wanted variable parallax so I could set it at 35 yards. I don’t know if it really makes any difference, but I do try to go for accurate head shots. The scope is also a little overkill in magnification, but it does help with the head shots and my aging eyes.”

“As a youth in the 70s, I always dreamed of a left-handed bolt. So getting back into shooting/hunting about 8 years ago, I was delighted to discover this gun. Growing up I had a semi-auto 22, but being a lefty … it would spit powder on my face.” — Ohio Varmint Shooter

Tikka T1x Action in Eliseo Competition Machine Chassis

Here is Gary Eliseo’s personal Rimfire Match Target Rifle with Tikka T1x action. The T1x action is carried in Competition Machine Rimfire Chassis. Gary also posted some recent 100-yard groups, using SK rifle match ammo in this rifle. Gary runs Competition Machine LLC and produces the chassis system for this cool rig, along with outstanding Across-the-Course, High Power, and F-Class chassis systems for rimfire and centerfire rifles.

Vudoo Action Benchrest Rifle with Benchmark 3-Groove Barrel

Here is a classy benchrest rig belonging to Forum member FCJIM. It features a Vudoo LBRP action, Benchmark 3-groove barrel, Harrell’s Precision tuner, NightForce Benchrest scope, and McMillan Edge stock. The stock work was done by Doan Trevor, while FCJIM did the metal work himself, using a Nevius reamer. This rig likes to shoot ELEY Black and Lapua Midas+ ammo.

Classic CPA Rifles Lever-Action Single-Shot Rimfire Rifle

Last but not least, here is a “blast from the past”. This classic lever-action single shot is crafted by CPS Rifles (Paul Shuttleworth), a boutique gun-maker specializing in single-shot rifles, particularly reproductions of the Stevens 44 1/2. Note the richly-figured wood and the lovely color case-hardening on the receiver. There is a dual Set Trigger system. You pull one trigger through a relatively long stroke until it clicks. The the second trigger breaks the shot (and drops the hammer) with just a few ounces of pull weight. This rig, fitted with MPA Vernier-type tang sights, belongs to Forum member “Mills” from Texas.

Planning a rimfire build in the future, or want to get the exact specifications for your 17 Mach 2, 17 HMR, 17 WSM, .22 LR, or .22 WMR rifle? Then we’ve got you covered. CLICK HERE to download an official SAAMI document with specs for all popular rimfire ammunition. This FREE 89-page PDF includes complete Cartridge and Chamber drawings and headspace specifications. The document even includes info on pressure terminology, headspace gauges, and test barrels.

DOWNLOAD SAAMI Rimfire Cartridge/Chamber Drawings >>

SAAMI, the Sporting Arms and Ammunition Manufacturers’ Institute, is an association of the nation’s leading manufacturers of firearms, ammunition and components. Founded in 1926, SAAMI promulgates industry standards for firearms ammunition safety, interchangeability, reliability and quality.

SAAMI offers diagrams for ALL popular, modern rimfire cartridges:

Here’s the Official SAAMI Drawing for the 17 HMR Cartridge:

SAAMI Website Also Offers Centerfire Cartridge and Shotshell Diagrams
From the SAAMI website you can also access hundreds of FREE official cartridge diagrams and chamber drawings for all centerfire ammo types and Shotshells. Click on the Cartridge and Chamber Drawings link, then go to the SAAMI Standards Page. On the Standards Page, choose your ammo type: Rimfire (Z299.1), Shotshell (Z299.2), Pistol and Revolver (Z299.3), Rifle (Z299.4). This will then load large PDF files which include multiple cartridge diagrams.

The older indexing system was more convenient:

Any experienced varmint hunter knows the value of a good .17 HMR rifle, particular when used inside 150 yards on small critters such as ground squirrels. The .17 HMR is a great round, but for general plinking and target practice, we prefer shooting the venerable .22 Long Rifle. The .22 LR has less recoil and less noise. Importantly, .22 LR ammo (even with today’s shortages) remains much less expensive than .17 HMR ammunition.

Wouldn’t it be great if a single, affordable varmint rifle could shoot both .22 LR and .17 HMR? Well, CZ offers just such a rig — the CZ Model 455 American Combo, a versatile switch-caliber rifle priced at about $485.00 (MSRP is $531.00). The American Combo comes complete with both .22 LR and .17 HMR barrels, easily interchanged with a simple Allen wrench. As CZ explains: “The CZ 455 eliminates the need to spend the extra expense on a second rifle when you want to add another quality shooter to your rimfire battery”. For a bit more money, you can even purchase a .22 WMR barrel, making your CZ a triple-threat varmint-slayer.

The little CZ 455 has shown impressive accuracy in both .17 HMR and .22 LR versions. With good ammo, expect groups around half an inch (or better) at 50 yards. In fact, when GunsAmerica.com tested the CZ 455 American Combo, the .17 HMR version delivered quarter-inch groups at 50 yards. That’s pretty impressive accuracy for the price.

Video Shows Switch-Barrel Functionality on CZ 455

If you want to learn more about the CZ 455 American Combo, we suggest you read the GunsAmerica review. A comprehensive write-up with plenty of photos, this review answers most of the questions a potential buyer might have. Here’s a sample from the review:

“The 455 does now come in single calibers as well, but all of the guns retain the ability to shoot .22LR, .17HMR, and .22WMR with the purchase of extra barrels. CZ engineered the swapability with a novel bolt-locking system that works without levers or collars or any of the other things you generally see in convertible firearms. The barrels are machined with a two 45° cuts in them. the receiver then holds two bolts [seated at 45&deg angles]. To change the barrels you remove two action screws and the two 45° bolts. The system is elegant in its simplicity. Swapping the barrels takes about 5 minutes. You first remove the two action screws, then the action and free-floated barrel come right off the stock.”

CLICK HERE to Read Full GunsAmerica Review

Comb Height Adjusts with Interchangeable Stock Modules
Ruger’s new rimfires feature interchangeable stock modules that provide variable comb heights. Standard models come with long length of pull modules, while compact models come with short length of pull modules. By simply removing the rear sling swivel stud, stock modules can be changed in seconds.

.22LR Models Can Use All 10/22 Magazines
Models chambered in .22LR feature the detachable, flush-mounted 10/22® BX1 10-round rotary magazine and accept all 10/22® magazines. Models chambered in .22 Magnum use the detachable, flush-mounted JMX1 9-round rotary magazine.

Dove-Tailed Action and Bolt with 60° Bolt Throw
Standard 3/8″ dovetails for rimfire rings are milled into the actions, which are also drilled and tapped for mounting Weaver-style bases. The 60-degree bolt can be removed with an easy-to-use, receiver-mounted bolt release that does NOT require a pull of the trigger.

Integral Bedding Block for Action
The new rimfire rifles also feature a patent-pending Power Bedding® integral bedding block system that positively locates the receiver and free floats the barrel. Additional features include a blued, hammer-forged barrel with fiber optic front sight and adjustable, folding leaf rear sight.

The beautiful wood comes from Ballard Rifle & Cartridge Co. of Cody, Wyoming. Shilen Rifles provided the new blued octagon barrel (chambered in 22 Magnum). David tells us: “This is an 1885 Winchester made in 1919 that I customized for prairie dog shooting. The gunsmith was Mark Stratton, and the engraving was done by Darrel B. Nelson.”