How and Why to Create a Dummy Round
When you have a new custom rifle built, or a new barrel fitted to an existing rifle, it makes sense to create a dummy round. This should have your preferred brass and bullet types, with the bullet positioned at optimal seating depth. A proper dummy round helps the gunsmith set the freebore correctly for your cartridge, and also ensure the proper chamber dimensions.

Respected machinist, tool-maker, and gunsmith Greg Tannel of Gre-Tan Rifles explains: “I use the dummy round as a gauge to finish cut the neck diameter and throat length and diameter so you have [optimal] clearance on the loaded neck and the ogive of the bullet just touches the rifling.” He recommends setting bullet so the full diameter is just forward of the case’s neck-shoulder junction. “From there”, Greg says, “I can build you the chamber you want… with all the proper clearances”.

Greg Tannel has created a very helpful video showing how to create a dummy round. Greg explains how to measure and assemble the dummy and how it will be used during the barrel chambering process. Greg notes — the dummy round should have NO Primer and No powder. We strongly recommend that every rifle shooter watch this video. Even if you won’t need a new barrel any time soon, you can learn important things about freebore, leade, and chamber geometry.

Must Watch Video — This has been viewed over 810,000 times on YouTube:

This has been a very popular video, with over 810,000 views! Here are actual YouTube comments:

That is the best explanation I’ve ever seen. Thank you sir. — P. Pablo

Nice video. You do a very good job of making this easy for new reloaders to understand. I sure wish things like this were available when I started reloading and having custom rifles built. Once again, great job, and your work speaks for itself. — Brandon K.

Beautiful job explaining chambering clearances. — D. Giorgi

Another Cool Tool — The Stub Gauge

When you have your gunsmith chamber your barrel, you can also have him create a Stub Gauge, i.e. a cast-off barrel section chambered like your actual barrel. The stub gauge lets you measure the original length to lands and freebore when your barrel was new. This gives you a baseline to accurately assess how far your throat erodes with use. Of course, as the throat wears, to get true length-to-lands dimension, you need take your measurement using your actual barrel. The barrel stub gauge helps you set the initial bullet seating depth. Seating depth is then adjusted accordingly, based on observed throat erosion, or your preferred seating depth.

Get WAY Better Groups with New Criterion Pre-Fit Custom Barrel

In our Shooters’ Forum, you’ll find a lengthy thread about accuracy problems with a Savage LRPV, chambered in 6mmBR. The gun would repeatedly split groups at 100 yards, and at 300 yards, the “flyers” would open up the groups to 1.5 MOA or larger. Interestingly, the factory test target (at right) showed a split group — not a good sign.

The gun’s owner, forum member LR_Shooter, tried a variety of tweaks: “I did this, done that… [changed] torque, tang floated, bedded action, recut chamber, and [adjusted firing pin]”. But nothing really helped. Frustrated, LR_Shooter asked his fellow Forum members for help. Much advice was proffered, including the novel idea of removing the middle action screw in the Savage 3-screw target action. Some of the advice proved helpful, but none of the suggested remedies produced a major improvement. This rifle, out of the box, tossed flyers and no amount of tweaking (or changes in shooting technique) really cured the basic problem. That is, until, the factory barrel got replaced…

New Criterion Pre-Fit Barrel Works Wonders
LR_Shooter acquired a Criterion pre-fit barrel from Jim Briggs at Northland Shooters Supply (NSS). These pre-fits are designed for easy installation with the standard Savage barrel nut. Wouldn’t you know it, with a new 30″ heavy-contour barrel on the LRPV, the gun started shooting way better. No more crazy fliers, no more split groups, no more excessive vertical. And the improvement came without any other major modifications. LR_Shooter reports: “I got a replacement barrel from Jim at NSS. It is a 30″ bull Criterion barrel. So far, without playing with torque screws and having my old setup… I’m very satisfied with the barrel I got. Now I have no problem getting [groups] under 0.25 MOA. Finally this thing can shoot!” The targets below, shot with the new Criterion barrel, speak for themselves. The left target was shot at 100 yards, while the target on the right was shot at 300 yards (very impressive).

Targets Shot with Savage LRPV Fitted with Criterion Barrel

Read Thread on Savage Accuracy Issues Fixed By Criterion Barrel

Moral of the Story — Sometimes A New Barrel Really Is the Right Solution
All of us have struggled at times with a rifle that won’t live up to expectations. This Editor personally struggled for over a year with a .260 Rem Savage with a factory tube. The gun tended to split groups and the POI walked as the barrel heated. I tried one powder/primer combination after another, working through a variety of seating depths over many months. I was persistent. Out of stubbornness, I just believed that sooner or later I’d find the magic load.

Well folks, sometimes there’s really nothing you can do about a sub-par barrel. It is what it is. To really improve a gun’s accuracy (particularly a gun with a factory tube), you may need to open your wallet and get a quality aftermarket barrel. Spending months trying one recipe after another may simply be an overwhelming waste of powder, bullets, and your precious time.

Albert Einstein supposedly said: “Insanity is defined as doing the same thing over and over again, and expecting different results.” Well that sort of describes my efforts with my .260 Rem. Once I had enough evidence that my barrel split groups no matter what load combo (and seating depth) I tried, it was time to pony up for a new barrel. When I did finally screw on a nice PacNor 3-groove SuperMatch, that Savage suddenly became a true tack-driver. As re-chambered in 6mmBR with the Pac-Nor, in calm conditions, my Savage will now consistently shoot in the twos with heavy bullets, and it can sometimes dip down into the ones with Berger 80gr flat-base bullets. The moral of the story here is simple — don’t waste weeks or months chasing your tail with a barrel that just won’t deliver (after a reasonable amount of testing). Save up for a custom barrel, get it chambered properly, and stop your cycle of frustration.

Editor: This story by Tommy C. (aka “dc.fireman”) comes from our Shooters’ Forum. It’s fascinating to see how a relatively inexpensive Savage M12 BVSS varmint rig was transformed into a sophisticated 300M match rifle with a modern chassis, Shilen barrel, and top-of-line sights. With some ingenuity, and careful parts selection, Tommy created a rifle that can compete with match rifles costing many thousands of dollars more. American ingenuity at work!

Savage Reborn — Old BVSS Transformed into 300M Match Rifle

by Tommy C. (aka “dc.fireman”)
So, I began the project of building a 300M International competition gun, about a year ago, intending to compete at the 300M Nationals this year in Minnesota at the Minneapolis Rifle Club. Realistically, I didn’t want to pay the price-tag demanded of the Bleikers, Grunig & Elmigers, Hammerlis, or Tanners that (infrequently) pop-up for sale from time to time. So I decided to build my own 300M Match rifle with an American action, barrel, chassis, and trigger.

Here is Tommy’s completed 300M Match rifle with Savage action in PDC Custom chassis.

I had decided on the .260 Remington (aka 6.5-08) as the caliber choice. This beat out 6.5×47 Lapua simply due to the cost/availability of brass. The .260 Rem cartridge is based on the .308 Win parent. I made my first batch of brass by necking down some Federal .308, and it worked great. [Editor: We do recommend Lapua .260 Remington brass for match purposes for those who don’t have a supply of good .308 Win brass.]

I had an older Savage M12 stagger-feed action, originally from an old .22-250 BVSS. I contacted James at Northland Shooter Supply, and he walked me through the game plan and equipment I needed: Shilen Select Match 26″ barrel, NSS Stainless recoil lug and nut, a set of Forster headspace gauges, and the NSS action wrench.

Catalog photo of current Savage M12 BVSS in .22-250 Rem.

A few months later, I replaced the original Accu-trigger with a Rifle Basix SAV-II trigger, and immediately wondered why I waited so long to do that. The Rifle Basix is perfect for my application. Mind you the he safety DOES NOT work now, but, I don’t need it for my application.

Another member on the AccurateShooter Forum sold me a BVSS stock that has been re-worked by Alex Sitman of Masterclass Stocks, and it served as a placeholder, until I could find a maker who could nearly replicate my Feinwerkbau 2700 Alu stock in my smallbore match gun.

After scouring the AccurateShooter Forum, and multiple internet searches, I found PDC Custom in Michigan. I spoke with Craig Kierstadt a few times, before finally deciding to pull the proverbial trigger on his chassis. He had a few of the older chassis stocks with spacing for the Savage stagger-feed action. He machined an Anschutz rail into the fore-end for my hand stop and sling. Then he powder-coated the chassis black, and sent it to me sans grip and butt plate.

Photo of action/chassis. Tommy says: “It locks up really tightly, and you can tell Craig spent some time on the CNC work need to make this all fit.”

There are a few minor issues with the PDC chassis, but overall, I would rate this a 9.5 out of a possible 10. The price, and the features built into it, plus the ease of which everything fit together, far outweigh any minor issues. And two of the issues I quickly corrected with Teflon tape. I will need to make a walnut cheek piece — a curved one isn’t conducive to aperture iron sight shooting.

Savage Action .260 Rem 300M Match Rifle Components:

For his practice load, Tommy shot 123gr Hornady ELD-M bullets with H4831 powder and CCI BR2 primers. This load performed well — Tommy posted: “My 25-shot initial prone test today shows promise. There are five sighter shots, and 20 record shots. One of the 9s at 9 o’clock is my first sighter, the other one I own. The 8 out at 4 O’clock was a round that was difficult to chamber. My initial scoring puts me somewhere in the vicinity of 193-7X.”

The target used is the NRA C2, “300M International Rifle Target, reduced for 200 yards”.
The 10 Ring is 2.40″ in diameter, while the Inner 10 (X-Ring) is 1.24″.

Match Load — Varget and Nosler Bullets
For his match load, Tommy switched to Varget and Nosler bullets: “My match load uses 37.9 grains Hodgdon Varget with a Nosler 123gr bullet. This was a recommendation by a gentleman with a lot of experience in 300M shooting.”

Tommy adds: “The amount of knowledge gained via the AccurateShooter Forum has made this all a reality, instead of just a passing thought.”

You have to admire someone with serious do-it-yourself skills. Not just hammer and nail skills, but formidable design and fabrication skills. Well Forum Member Dave D. (aka “AKShooter”) has a DIY skill set that might put some trained machinists to shame. You see, “DIY Dave” crafted his own pedestal front rest from scratch, using his own design and about $100.00 in materials (not counting the Edgewood front bag). Dave estimates he put 20 hours of labor into the project, but the end result was worth it: “This Do-It-Yourself rest drives like a dream. I’ve played with the Caldwell and a Sinclair, they have nothing on this one.”

Dave tells us: “Here is my Do-It-Yourself front rest. I wanted to show other folks who are handy that a solid front rest is doable with a bit of time — and you don’t need to spend $1000.00. (You could say this is a design for shooters with more time than money.) This is for F-Class. I was originally overwhelmed by the equipment needed, so I decided to make my own rest. I didn’t have the money for a SEB or Farley Coaxial. This is what I’ll run this season (my second as an F-Class competitor).”

We asked Dave what equipment was used to make the rest. He explained: “My brother has a CNC cutter. But most water-jet outfits would do the work for $100 or less. All the plates are tapped and screwed. I found small machine screws on eBay.” Dave says there are other ways to build a front rest: “You could do the same with a welder and plate stock for base. It’s easier to do the top out of aluminum though, with all the tapping.”

Dave enjoys fabricating his own gear, but he admits the process can be time-consuming: “I’m a DIY guy. Sometimes I wrap up a project and wonder why the heck I just spent X amount of time on it.” Dave has other projects in the works: “Another option we are making for a friend is taking a cheap front rest and bolting to a 3/4″ thick, wide MDF base and adding additional adjustment screws. The hardware store is your friend!”

On the competition front, Dave is tuning up a 6mm Dasher: “My rifle last year was a .260 Rem Savage repeater. I was about middle of the pack in my group of shooters. Just went with unsorted Bergers and Lapua brass, and had a ton of fun. Now I’m in — hook, line, and sinker. I have an unfired 6 Dasher barreled action from the folks at Kelbly’s to break in. I’m cheap, so I ended up with a Do-It-Yourself stock for the Dasher.” Hopefully Dave will send us a photo of his DIY-stocked Dasher when the gun is dialed-in and “ready to rumble”.

Mike Kurtz’s Competition Machine F1 “Pro-Mod” F-Open Rifle
Today’s Sunday GunDay article showcases a modern F-Open Rifle built on a Competition Machine Aluminum Chassis. This is quite a bit different than a typical F-Open rifle with a laminated wood or wood/carbon stock. But the rifle shoots extremely well, and has already won some mid-range F-Open matches.

The rifle’s owner, a highly respected vehicle mechanic, explained his objective with this rifle: “I wanted to build a second F-Open rifle to shoot primarily 600-yard Mid-Range and also serve as my back-up long range rifle. That way I can use the same brass, bullets, and primers. So it would be chambered in 7mm-6.5 PRC, the same as my other F-Open rifle. That rig is a 7mm-6.5 PRC with Cerus XR stock, BAT Neuvo action, and Bartlein 1:9-8.7″ gain-twist barrel. I absolutely love that rifle and it has achieved several top honors. But for this project, I wanted to try some different rifle components to see how they performed in this same caliber. So I decided to go with Brux barrels, BAT Neuvo aluminum action (but see below), and an Eliseo Competition Machine F1 aluminum alloy chassis.”

BARREL SPECIFICATIONS: I ordered two Brux 7mm x 33″ barrels with 1:8.5″ twist. The contour was supposed to be 1.350″ diameter for 5″, tapered-down to 1.150″ diameter at the muzzle end. However, when the barrels arrived they were tapered down to 1.050″, a bit smaller. The folks at Brux admitted the work order was mis-read and offered to take back the barrels and make me two more. Or, I could keep the barrels with nice discount. I contacted my gunsmith, Omar Alonzo, for his advice and he said to keep them, they would shoot just fine. That turned out to be a blessing because the total rifle weight is now just three ounces under 22 pounds with one of these barrels. Omar chambered it with his 7mm-6.5PRC “no-turn” reamer that was used on my Cerus rifle. The Brux barrel was finished at 32″ with the muzzle end threaded for a V2 tuner.

ACTION and TRIGGER: I intended to use an aluminum BAT Neuvo action because I anticipated weight may be a concern, but they were on back-order with no lead time in sight. So for now I went with a used steel BAT Model M, 1.47 Octagon action that I acquired via the AccurateShooter Forum marketplace. This is a RBLP Right Eject action with magnum bolt face and 20 MOA integral Picatinny rail. The trigger is a Bix’N Andy Competition also scored on the Forum, set at 3 ounces. [NOTE: I now have an aluminum Neuvo AL in my possession. However, the F1 rifle is shooting so well, I’ll save the aluminum Neuvo for a future build.]

STOCK and FINISH: When I was planning my second F-Open 7mm-6.5 PRC rifle build, Gary Eliseo’s F1 aluminum chassis was my immediate choice. I was already familiar with Gary’s products since I started out three years ago with a used 6BR-chambered R1 tube gun. I purchased it from a Forum member and I adapted it for Mid-Range F-Open very successfully. Being a long-time drag racer and fabricator piqued my interest in these aluminum chassis combos. I contacted Gary Eliseo at Competition Machine and ordered his F1 F-Open Chassis System with one of his custom-machined bedding blocks for the Bat M action I acquired off the Forum.

Video of F1 Chassis Rifle in Action

Turn-around time was just about eight weeks, including aligning and epoxying the action bedding block into the chassis. Gary Eliseo offers full custom Cerakote services for his customers but I had something else in mind so I had the chassis sent to me “raw”, i.e. with a bare aluminum finish. At first I thought about polishing some or all the entire chassis but that would be too high maintenance. I decided to go with anodizing as I have done in the past with many race car components. Anodizing is an electrochemical process that converts the metal surface into a decorative, very durable, corrosion-resistant, anodic oxide finish that’s pretty tough and looks great!. This finish is available in many colors and in clear.

While I was surfing the internet looking for some color/combo ideas I stumbled on a local custom anodizer who had dozens of some really wild and crazy anodizing patters and color mash-ups. I messaged Stephen @ Caustic Customs and told him about my project. He replied that his specialty is paint-ball guns and this would be his first long gun but, hey, it’s aluminum! I gave him all the pieces of my F1 chassis. There were a couple of his patterns I really liked so I asked his opinion which he thought might look best for my project. He replied why not both? So I instructed him take both patterns and “run with it”. The end result is the Icy-Hot blue/red finish as seen in the pictures.

It all came together at Alonzo’s Custom Rifles in Pasadena, Texas. Omar hand-lapped the action bedding block surface to smooth-out some tiny high spots. He then skim-bedded the action with an epoxy filler to make sure the action made 100% contact with the bedding block. Barrel chambering, action fitting, trigger tuning, and final assembly was performed by Omar.

I finished the rifle with a hydraulic recoil pad from Falcon Strike and Anarchy Outdoor’s Penguin Precision Grip. Gary designed the F1 to utilize AR15-style grips. The Falcon Strike pad is not as sexy as the R.A.D. unit I have on my Cerus-stocked rifle, but I think its recoil-absorbing performance is up there with the R.A.D. unit. So, if a RAD is not in your budget or if weight is a concern, you can’t go wrong with a Falcon Strike recoil pad.

SCOPE/RINGS: My intention was to switch my March-X 8-80x56mm Majesta High Master scope between my two rifles. However the hefty stainless Bat M action nixed that idea. So to ensure the new rifle would be F-Open legal weight I went with a used March-X 10-60x56mm High Master scope that I acquired through the AccurateShooter Forum Marketplace. That 10-60X March, shown in the video, is almost 11 oz. lighter that my 8-80X March-X Majesta HM. NOTE: In some of the photos here, the rifle is fitted with an older March 8-80X scope (NOT the latest Majesta). The rings are March Superlight Titanium Ghost Rings — under 5 oz. for the set, the lightest I could find.

F-Open F1 Chassis Rifle Specifications

Chambered for: 7mm-6.5 PRC Wildcat
Stock: Competition Machine F1, F-Open Chassis, Falcon Strike Recoil Pad, Anarchy Outdoors Penguin Grip. Custom anodizing by Caustic Customs.
Trigger: Bix’N Andy Competition trigger
Action: Bat Model M — Right Bolt, Left Port, Right Eject with 20 MOA scope rail
Barrel: Brux 7mm, 1:8.5″ twist, 32″ overall, 1.350″ x 5″, tapering down to 1.050″, V2 Tuner
Scope: March-X 10-60 High Master, MTR-1 reticle. March Ultra-Lite Titanium Ghost scope rings.
Gunsmith: Alonzo Custom Rifles

CARTRIDGE COMPONENTS and LOADING METHOD: I use Lapua 6.5 PRC brass, Berger 180gr Hybrid bullets and Federal 210M primers. New brass necks are expanded to 7mm and skim-turned to get a consistent .014″ neck thickness. I use a 35-degree cutter and go just a slight bit into the shoulder to ward off donuts. I then chamfer the flash holes, uniform the primer pockets, full-length size the cases, then expand and trim/chamfer the necks. My fired brass gets annealed, wet-tumble cleaned, full-length sized/expanded, and trimmed in that order. Bullets are pointed and then sorted by OAL. Primers are sorted by height and then by weight. I apply Neo-Lube to the inside of the necks with a foam Q-Tip for consistent seating psi.

This is from a 600-yard match shot with the F1 rifle a few months ago.
Despite a strong wind from behind constantly switching right to left,
I scored a 200-12X — good enough for Second Place.

LOAD DEVELOPMENT PROCESS: Thanks to some good 7mm-6.5 PRC load data posted on AccurateShooter.com, it helped me with a starting point to find a nice velocity node at 2865 fps using Hodgdon H4350. I did this by shooting some 2-shot groups seated .010″ off the lands. my focus was to find a node where the velocity leveled-out in at least two 0.5 grain increments in the 2850-2880 fps range. I then did a seating depth test at 100 yards to find my ideal seating depth which ended up at .024″ jumped. Next, I did some 3-shot groups at 100 yards to dial-in he barrel tuner until I got at least two consecutive ultra-tight groups. I verified that setting with a one-hole, three-shot group.

About Mike Kurtz
Michael Kurtz is owner/operator of Century Automotive & Transmission. An ASE Master L1 Technician since 1983, Mike has been an avid drag racer over the last 40 years. Mike notes: “I never owed any kind of rifle until I retired from racing. Got bit by the accuracy bug and learned about F-Class in 2021. I read several reloading and long range shooting books while I scoured the AccurateShooter Forum Marketplace for a rifle, scope, rests, and reloading equipment for my first F-Open rig. Most all of my major components I acquired via online Forums. I have to attribute the early success of my F-Open accomplishments to the vast content found on AccurateShooter.com.

I am also a member at Bayou Rifles Inc. in Houston Texas where I’ve learned from some of the best shooters in the country. The competition here is fierce but the camaraderie is second to none!”

For more information, contact:
Mike Kurtz
Century Automotive & Transmission
281-633-8155
Member “makurtz” on AccurateShooter Forum

Rimfire is hot now. Across the nation, .22 LR rimfire disciplines are now the fastest growing types of rifle competition. And with today’s featured rig, the Competition Machine (Eliseo) Universal Match Rimfire Rifle (UMRR), you can shoot a variety of matches — NRA rimfire, NRL22, NRL22X, PRS Rimfire, local silhouette-style steel matches, even local rimfire benchrest matches (with a bag-rider fitted up front).

Compared to shooting centerfire, rimfire shooting is much less costly. You can get pretty good match ammo for under $8.00 per box. That works out to just 16 cents per round. Compare that to $1.60 or more per round for handloaded centerfire ammunition (counting powder, bullet, primer and brass). And you don’t have to deal with shortages of your preferred powder or primers, or spend hours hand-loading. With rimfire, just open your .22 LR ammo box, load your magazine, and shoot.

Versatile, Accurate, Affordable — Universal Match Rimfire Rifle

If you’re a Palma shooter and want to shoot rimfire with a rifle with identical ergonomics and “feel” as your centerfire tubegun, Gary Eliseo’s new Universal Match Rimfire Rifle (UMRR) is your logical choice. Or if you are looking for a high-quality bolt-action chassis rifle for NRL22 (rimfire tactical) competition, this is a great option. Running a smooth Tikka T1x action, the UMRR offers match-grade performance at an attractive price — $1950.00 for the Sport-Target model with 20″ Tikka factory barrel.*

The Tikka T1x action is a smooth, short-throw action that cycles quickly and easily:

Gary Eliseo, head honcho of Competition Machine in Arizona, explained the features of the UMRR: “Our Universal Match Rimfire Rifle system has all the features of its big brother the Universal Match Rifle System (UMRS) and will accept all the same accessories and attachments. The rimfire UMRR is identical in size to the centerfire version so it’s possible to have your centerfire and rimfire rifles set up exactly alike.” That’s ideal for guys who compete in both centerfire and smallbore matches, and likewise it is ideal for cross-training using lower-cost rimfire ammo.

The UMRR is built around the excellent Tikka T1x platform. Gary notes: “We have accurized and tuned the T1x to give the best possible performance from factory barrel and trigger. The UMRR can also be customized with a high-end match barrel and trigger. By just changing the attachments, the UMRR can be used in multiple shooting disciplines like NRL22 and NRA rimfire competitions.” Gary also noted that Tikka recently updated the T1x bolt and magazine for improved feeding and extraction. See video below.

Sport-Target UMRR Shows Excellent Accuracy with Factory Barrel
Eliseo confirms that the Sport-Target UMRR with factory Tikka barrel and trigger is easily capable of sub-MOA precision. Check out those five-shot groups shot at 50 yards. The smallest group (.210″) works out to 0.40 MOA, while the largest group (0.39″) is 0.74 MOA. Remember this is with Tikka factory barrel!

The Sport-Target UMRR with factory Tikka barrel and trigger is capable of sub-MOA precision.

The Sport-Target version uses the factory 20″ Tikka barrel with threaded muzzle that has been set back and re-chambered so the bullet will engrave the rifling, which increases the precision of the rifle significantly. The excellent Tikka trigger is tuned to a pull weight of one pound. Overall the UMRR is a great choice as an XTC/LR prone trainer or NRL competition rifle at very reasonable cost.

Superb Accuracy from UMRR Match-Target Model

The Match-Target version comes with a top of the line Benchmark match barrel and Eley match chamber with the muzzle configured for your application to accept a front sight, tuner, or threaded, there are several aftermarket single-stage or two-stage match triggers available. Current Eliseo Rifles price for the UMRR Match-Target is $2650.00.*

The Match Target with Benchmark match barrel is capable of competing at the highest level. Shown above are 50-meter sling targets and Lapua 50-meter test center results. The bottom box shows 20 shots with a superb 10.52 average score.

Updates from Tikka Improve the T1x Action and Magazine

Gary noted that Tikka has updated the Tikka bolt and magazine to improve feeding and extraction. Tikka replaced a wire-type system with a solid ejector element in the magazine. Gary says that improves the reliability of both feeding and extraction. Watch the video to see how this works.

Centerfire Accesories Will Work on UMRR

Gary notes that all the centerfire UMRS attachments will fit the UMRR, including handstop, rear balance weights, Picatinny scope rail, ARCA accessory rail, rear bag-rider, bipod mount, and front bag riding attachments. This easy adaptability makes the UMRR a true multi-discipline system for smallbore matches, NRL22/PRS rimfire competition, and cross-training.

Adapt the UMRR Easily to Multiple Shooting Disciplines

The UMRR can be easily configured for NRL, PRS, or NRA rimfire competitions by just changing the attachments. The UMRR is built on the excellent Tikka T1x barreled action that’s been accurized and bonded into the UMRR chassis system. Gary says the UMRR feeds .22 LR rounds flawlessly from the Tikka 10-round magazine, especially with the new, improved magazines. The UMRR is currently available in two basic configurations, both of which can be customized to your specifications.

Two Versions — Sport-Target and Match-Target
The Sport-Target version of the UMRR uses the factory 20″ Tikka barrel with threaded muzzle. Gary can tune the excellent Tikka T1x trigger down to a pull weight of around one pound, though for tactical work he says you may want to leave it stock. Gary tells us the Sport-Target is a great choice as an XTC/LR prone trainer or NRL22 competition rifle.

Match Target UMRR with Benchmark Custom Barrel
The Match-Target version comes with a top-of-the-line Benchmark match barrel and Eley match chamber with the muzzle configured for your application to accept a front sight, tuner, or suppressor. There are several aftermarket single-stage or two-stage match triggers available.

Tikka T1x — Quality Rimfire Technology from Finland
Gary Eliseo’s impressive UMRR is based on the smooth, reliable Tikka T1x rimfire action shown below. Note the nice craftsmanship of action, bolt, mag system, and trigger group. There is an extensive review of the T1x (.22 LR version) on our friend Jonathan Ocab’s Ocabj.net website.

Photo courtesy SAKO Sverige. Watch T1X Video HERE.

Gary Eliseo of Competition Machine. Here is UMRR designer Gary Eliseo at the 2017 Berger SW Nationals. Gary is a talented rifle marksman who competes in both smallbore and high power disciplines.

AR owners know that their black rifles require regular cleaning and maintenance. And this modular platform allows many options for stocks, fore-arms, and optics mounting. That ability to customize is one of the AR’s major attractions, but customization requires solid understanding of the AR’s design and components.

To help AR owners optimize and maintain their rifles, Gun Digest Media has a 320-page illustrated book: AR-15 Setup, Maintenance and Repair. Authored by Patrick Sweeney, this paperback book is a “one-stop guide to repairing, maintaining and modifying America’s favorite rifle.” You can order the print edition for $27.99 from Gun Digest, which also offers a $27.99 Digital Download version. Amazon offers a Kindle eBook version for $18.28 or the Print edition for $33.54.

GET FREE 40-Page AR-15 Book Sample
Note, if you are interested in the book, there is a substantial 40+ page FREE sample available on the Amazon site. You can see the entirety of the first two chapters from the Kindle digital version. CLICK HERE to visit Amazon.com and then click on the button labeled “Read Sample” below the cover image.

AR Set-Up and Maintenance
If you need to disassemble and maintain your AR rifle, swap barrels or handguards, add optics, or customize the stock, Gun Digest’s AR-15 Setup, Maintenance and Repair book tells you what you need to know. From field-stripping to barrel mounting and trigger installations, the book covers a wide range of topics. The book provides step-by-step instructions for set-up and maintenance, with hundreds of detailed photos. The book also includes AR gunsmithing chapters with reviews of recommended tools.

Author Patrick Sweeney is a certified master gunsmith and armorer instructor for police departments. Sweeney has also authored the notable 4-volume Gunsmithing the AR-15 series (Vol. 1, Vol. 2, Vol. 3, and Vol. 4) and 20+ other titles for Gun Digest Books.

Whether you want to learn about disassembling your AR for regular maintenance, field-stripping, swapping out parts, adding optics or customizing a stock, AR-15 Setup, Maintenance and Repair guides you through everything you need to know to keep your AR-platform rifle running well. There are also tips on how to improve accuracy, and maintain your bolt carrier group properly.

Editor’s NOTE: The key to keeping an AR running reliably is proper lubrication (in the RIGHT places), and regular cleaning of the bolt carrier and bolt, including ejector recess and extractor recess. The majority of non-functioning ARs we’ve seen had gunk, lube, carbon, and brass shavings in those recesses.

Other AR Books by Patrick Sweeney

Bonus Video — AR15 Maintenance with Jerry Miculek

In this helpful video, legendary shooting Jerry Miculek explains how he cleans and maintains his AR-platform rifles. Miculek shoots ARs in three-gun competitions.

Most of us own a .223 Rem rifle. Now, thanks to our friends at Rifleshooter.com we can assess exactly how velocity changes with barrel length for this popular cartridge.

Rifleshooter.com performed an interesting test, cutting the barrel of a .223 Rem rifle from 26″ all the way down to 16.5″. The cuts were made in one-inch intervals with a rotary saw. At each cut length, velocity was measured with a Magnetospeed chronograph. To make the test even more interesting, four different types of .223 Rem/5.56 ammo were chron’d at each barrel length. The Rifleshooter.com team that conducts these tests has a full-service gun shop, 782 Custom Gunworks — visit 782guns.com.

Test Barrel Lost 25.34 FPS Per Inch (.223 Rem Chambering)
How much velocity do you think was lost, on average, for each 1″ reduction in barrel length? The answer may surprise you. The average speed loss of the four types of .223/5.56 ammo, with a 9.5″ shortening of barrel length, was 240.75 fps total (from start to finish). That works out to an average loss of 25.34 fps per inch.

*There may have been an error. The 25″ velocity was higher at 3221 fps.

Rifleshooter.com observed: “Cutting the barrel from 26″ to 16.5″ resulted in a velocity reduction of 214 ft/sec with the UMC 223 55-grain cartridge, 244 ft/sec with the Federal M-193 cartridge, 288 ft/sec with the Winchester M855 cartridge and 217 ft/sec with the Back Hills 223 68-grain match cartridge.”

How the Test Was Done
The testers described their procedure as follows: “Ballistic data was gathered using a Magnetospeed barrel-mounted ballistic chronograph. At each barrel length, the rifle was fired from a front rest with rear bags, with five rounds of each type of ammunition. Average velocity and standard deviation were logged for each round. Once data was gathered for each cartridge at a given barrel length, the rifle was cleared and the bolt was removed. The barrel was cut off using a cold saw. The test protocol was repeated for the next length. Temperature was 45.7° F.”

CLICK HERE to Read the Rifleshooter.com Test. This includes detailed charts with inch-by-inch velocity numbers.

See More Barrel Cut-Down Tests on Rifleshooter.com
Rifleshooter.com has performed barrel cut-down tests for many other calibers/chamberings including 6mm Creedmoor, .308 Winchester, and .338 Lapua Magnum. See these test results at Rifleshooter.com.

Much Different Results with 6mmBR and a Longer Barrel
The results from Rifleshooter.com’s .223/5.56 test are quite different than the results we recorded some years ago with a barrel chambered for the 6mmBR cartridge. When we cut our 6mmBR barrel down from 33″ to 28″ we only lost about 8 FPS per inch. Obviously this is a different cartridge type, but also our 6mmBR barrel end length was longer than Rifleshooter.com’s .223 Rem start length. Velocity loss may be more extreme with shorter barrel lengths. And, of course, different cartridge types and powder/bullet combinations will yield different results.

The 2026 NRA Annual Meetings & Exhibits will take place April 16-19, 2026 at the George R. Brown Convention Center in Houston, Texas. The Exhibit Hall opens on April 17 and will showcase over 14 acres of the latest guns and gear from the most popular companies in the Industry. From entertainment to special events, it’s all happening in Houston! If you can take the time to attend the event, it is well worth heading to Houston. Entrance is FREE for NRA members.

» REGISTER HERE for 2026 NRA Annual Meetings & Exhibits

The 2026 NRA Annual Meetings & Exhibits has events on April 16th and the convention hall officially opens at 9:00 AM on April 17. NRA members and immediate family receive free entry. Non-members can join online or at the door for immediate access. Visit NRAam.org for more information and to purchase tickets for special events. NRA Members receive free admission, while a Weekend “All Access” Pass is offered for $35, which includes a 1-year NRA membership. CLICK HERE for a full schedule of all events.

Founded in 1871, the NRA marks its 155th year of service in 2026. In addition, on July 4, 2026 our nation celebrates its 250th year since the Declaration of Independence in 1776. As part of the Celebration of Freedom, this year’s NRA Annual Meetings & Exhibits will have special events and speakers at the George R. Brown Convention Center.

Intro to Show — Highlights from 2025

Here is a re-cap of the 2025 NRA Annual Meetings & Exhibits in Atlanta, GA. Expect similar activities and features at this year’s NRA convention in Houston, Texas.

Top Seminars, Gun Giveaways, and FREE NRA App

Paul Liebenberg of Pistol Dynamics is widely considered to be one of the finest pistol-smiths on the planet. When you ask other well-known handgun smiths whom they would rank among the very best, Liebenberg is a consensus pick. And Paul’s work is in high demand. There is a multi-year-long waiting list for his custom pistols, mostly built on 1911-platforms.

Some years back, Liebenberg shared his pistol building/tuning knowledge in a professional DVD from Panteao Productions. In that DVD, Liebenberg demonstrated the procedures he employs when crafting a custom 1911 pistol. The DVD’s topics covered included: fitting barrel and barrel bushing, installing grip safety and thumb safety, installing and tuning the trigger, installing and tuning extractor and ejector, relieving the mag well, undercutting the trigger guard, lowering the ejection port, and much more. Below are two YouTube videos that cover highlights from the DVD.

40+ Years Expertise
A trained industrial designer from South Africa, Paul Liebenberg was a member of the World Champion South African Practical Pistol Shooting Team. An NRA High Master and four-gun firearms instructor, Paul has competed successfully in many shooting disciplines.

In 1983 Liebenberg immigrated to the USA and joined Pachmayr Gun Works in Los Angeles where he rose to manage the Custom Gun Shop. In 1985 he opened Pistol Dynamics to build high-end 1911 competition handguns and Pachmayr pistols on contract to that company. Today Pistol Dynamics is in Florida where Paul continues to build high-end 1911 pistols. You can see his products at PistolDynamics.com