Here is Tom Mousel with Whitetail taken with his ultra-light hunting rifle fitted with 6mm Creedmoor Lilja barrel. Friend Cody (right) actually took the shot. This gun has a second barrel in 6.5 Creedmoor.
Hunting season is opening up soon across the country. In just three weeks, on 9/26/2026, the nation celebrates National Hunting & Fishing Day. This Sunday we feature an impressive state-of-the-art, ultra-light hunting rifle. This rig is very accurate AND very light, and features two barrels, one in 6mm Creedmoor and the other in 6.5 Creedmoor. With this Titanium-actioned rifle, owner Tom Mousel has successful taken Whitetail deer and other game.
“Light is Right” when it comes to carrying deer rifles long distances in the backcountry. A lighter rifle DOES make a difference when you’re hiking many miles and carrying other gear including binoculars, laser rangefinders, food/water, and packs. And then, if you are successful, you’ll be carrying out game meat, so a lighter rifle translates to a lighter overall load.
When Forum member Tom Mousel (a top 1000-yard competitor) considered a new hunting rifle, he wanted a very light-weight rig. What he got was a low mass masterpiece — an ultra-accurate, five-pound hunting rifle. Not only does this twin-barrel rifle, as built by Alex Wheeler, come in under five pounds (before optics), but it has produced some quarter-MOA 3-shot groups at 1000 yards. The 6mm Creedmoor version of this rifle has demonstrated truly stellar accuracy at long range. The 6.5 Creedmoor barrel also shoots well and packs more punch for hunting use.
CLICK HERE to view full-screen large version of photo.
Here is Tom’s rifle weighing in at 4 pounds, 14 ounces with 21″ Lilja #1 contour 6mm barrel. Tom says: “Here’s the rifle with full Titanium action, bolt, and lug, in a Tom Manners 17 oz. carbon fiber stock. It’s exactly one pound heavier fitted with my Leupold Mark AR 4-12x40mm scope in Talley rings.”
Tom has two barrels for the rifle, one chambered for 6.5 Creedmoor and the other for 6mm Creedmoor. Tom reports: “The 6.5mm is a bit lighter being fluted. But I won’t be switching back now that I’ve shot the 6mm version. Neither has too much recoil, but the 6mm CM just kills the 6.5mm at distance for groups.”
Tom tells us: “What I like about this rifle is there were no corners cut to make it light. On some other ultra-lights, the fore-end has no strength or they are cut down really short. This is a full-sized stock, pillar-bedded with aluminum-filled epoxy and free-floated barrel. The ignition is set up with a TON of firing pin fall to function in the coldest temps.”
Gunsmith Alex Wheeler of Wheeler Accuracy is pleased with how this project turned out: “Tom has shot a bunch of sub-5″ groups and a couple one-inchers back-to-back at 1K. He has the Berger 115gr VLD going about 3050 fps.” Tom noted the 6mm barrel picked up about 50-60 FPS after the first 50 rounds. He shoots 115gr Berger VLDs with CCI 450s and Reloder 16, with the Bergers about .005″-.008″ in the lands.
Groups at 1000 Yards with 6mm Creedmoor Barrel, 115gr Bergers
Here are two of Tom’s 1000-yard targets. This is with the 6mm Creedmoor barrel shooting 115gr Berger VLDs pushed by Alliant Reloder 16 at about 3050 FPS. The average of the two groups is 0.246 MOA. Pretty amazing for an ultra-light rifle shot off a bipod. Tom acknowledges that he can’t do this every day. He says that “shooting 871 yards at my home range, the rifle typically shoots 4″ to 5″ 3-shot groups”.
Q & A with Tom Mousel About his Ultra-Light Hunting Rifle
Q: Why did you choose to build this rig?
Tom: I just wanted to do it to see how light we could build an accurate, good-shooting rifle.
Q: What are your favorite things about the rifle, and is there anything you would change?
Tom: Definitely the light weight, and the overall size — it has a pretty short barrel (21″), so it’s just handy. I wouldn’t change anything about the rifle, now that I have the Titanium bolt. When I bought the action originally it had the steel bolt.
Q: How does this rifle handle?
Tom: It points well considering it is a light rifle. The 6mm Creedmoor version has very little recoil. On a good bipod I can sight in at 1000 without a spotter.
Q: What are your favorite accessories?
I use a Solo Hntr Mtn Lite stretchy cover. You can see it in the photo at right showing me on a hunt. I like this because you can roll it up like a sock and and use it for a rear support.
Q: Why did you choose Alliant Reloder 16 powder?
Tom: Lonnie Anderson, a fellow Deep Creek shooter, did a 6mm Creedmoor and he said RL16 was absolutely the most accurate. We have also found that Reloder 16 is really consistent on velocities through the seasons — from 90 above to teens below zero.
Q: Could this ultra-light set-up work for a bigger caliber also?
Tom: I’ve tried bigger calibers, but I’ve never been satisfied with the consistency of the groups. There’s a cut-off — there’s too much torque and recoil. We see a limit — you don’t want “too much gun” for the platform. Even here, the 6.5 barrel just doesn’t shoot as well as the 6mm.
Q: What advice do you have for hunters considering ultra-light rifles?
Tom: Be careful about falling in love with ballistics and trying to build too much bang for too small a platform. If I built a 7mm WSM for example, I’d want to rifle to weigh at least two pounds more.
Full Titanium Action from Pierce Engineering
This photo shows the Pierce Engineering Titanium Featherweight short action featuring Titanium (Ti) receiver, Ti bolt, and Ti lug. This unit is a mere 15.90 ounces complete. (NOTE: with Titanium body and STEEL bolt the weight is 18.5 ounces). The long action version is 17.4 ounces for the complete Titanium action with Ti bolt and Ti lug.
Jud at Pierce Engineering tells us: “Both the Ti action body and Ti bolt are DLC-coated. This action also has an anti-bind rail for added smoothness and ease of functioning. This really is one of the lightest actions on the market. If you’re looking into building an ultra-light rifle I would seriously check one out! We make these with the highest level of detail, pride, and machining tolerances. They’re just sweet actions… and our Ti Featherweight short action is roughly half the weight of a Remington Model 7. So there’s a significant weight savings with the Pierce Ti Featherweight over a Model 7.”
Owner Profile — Tom Mousel, Hunter AND Long-Range Benchrest Ace
Tom Mousel knows a few things about accurate rifles. He is a top 1000-yard competitor at IBS matches and at the Deep Creek range near Missoula, Montana. In 2016 Tom set a remarkable 6-match Light Gun Group World Record, with a 2.9540″ group size Aggregate for SIX matches. And a year later, in 2017, Mousel set a 10-Match Heavy Gun World Record with a 5.3376″ Aggregate. NOTE: that is for TEN-shot groups in Heavy Gun. That’s an average ten-shot group under 6 inches for 10 matches! Over the past decade, Tom has remained at the top of the 1000-yard game, with many match wins at Deep Creek and other ranges.
Keith Glasscock is an outstanding competitive shooter, who has finished second at the F-Class National Championships (F-Open) multiple times. Keith is also a skilled wind coach who runs the popular Winning in the Wind YouTube Channel. Along with his interest in F-Class competition and (recently) PRS/NRL competition, Keith also enjoys game hunting and varmint adventures.
Hunting season is coming soon, so today we showcase two videos Keith has made about developing hand-loads for hunting rifles. Developing accurate hand-loaded ammo for hunting and varmint rifles involves procedures that may be a bit different than load testing for a match rifle. You want to be efficient, and use the types of brass and bullets you’ll be using on the hunts. In these two videos, Keith shows how he developed good, accurate loads for a .223 Rem varmint rifle and a .308 Win hunting rifle.
In addition to Keith’s two informative videos, today we feature three other videos with useful tips and techniques for hunters and huntresses. These cover rifle marksmanship, hunting optics selection, and methods for sighting-in hunting rifles.
.223 Rem Load Development — Powder Charge and Seating Depth
In the first video, Keith covers the load development process for a Remington 700 bolt-action varmint rifle chambered in .223 Remington. Keith starts by full-length sizing the brass. Then he experimented with powder charge weights, and came up with a promising load of 24.7 grains of Alliant AR Comp with Hornady 50gr A-Max bullets.
Next Keith experimented with seating depths (see 5:30-6:100) and found that accuracy improved as he changed OAL length in .005 increments. Keith ended up with 2.270″ with a 3-shot group in the twos! This video shows the importance of testing your bullet choice at various seating depths. Keith shoots this rig prone off bipod, which is similar to the bipod shooting he does in the varmint fields. Keith explains key factors to consider when optimizing the .223 Rem cartridge in a varmint rig. Velocity readings are made with a LabRadar unit.
Load Development for .308 Win Hunting Rifle
In a second video, Keith shows the process for load development with a .308 Winchester hunting rifle. Here Keith uses a large X-type sandbag for a front support. Again, he was shooting a Remington 700 bolt-action rifle, this time with Barnes TSX solid copper bullets, PPU Brass, Federal 210m primers, and AR Comp powder. Keith said the Barnes bullets were excellent — he commented that these bullets were “match quality in terms of precision”. Keith achieved some very small three-shot groups with AR Comp and the TSX projectiles. Keith did note that point-of-impact shifted up significantly with increases in charge weight (see 6:20-7:10). With thinner-contour hunting barrels, this is not unexpected. But POI change should be observed carefully during load development, as you may need to adjust your zero after completing testing.
Three Bonus Videos for Hunters and Huntresses
Here are three videos with useful tips and techniques for hunters and huntresses. These cover rifle marksmanship, optics selection for deer hunting, and efficient methods for sighting-in hunting rifles.
How to Shoot Better with a Hunting Rifle
This “must-watch” video has great practical advice for hunters. It illustrates proper hand-hold and head position, and shows how to stay steady when breaking the shot. Even competition shooters can learn a few things. One viewer notes: “This was very informative. The footage through the scope showing how one’s position moves the sight alignment was particularly helpful.”
You’ll find more great videos on Thomas Haugland’s THLR.NO YouTube Channel, that offers videos for long-range hunters and marksmen. Haugland, who hails from Norway, is a serious shooter, who takes his rifles out into the field, in all conditions. The THLR.NO channel offers solid advice on scopes, reticles, wind-reading, field positions, and much more. Haugland’s team puts a wide variety of gear through serious field tests — every thing from suppressors to packs to electro-optical hardware. In addition the THLR.NO channel provides good advice on stalking techniques and hunting skills.
The Complete Optics Selection for For Deer Hunting
In this video, Vortex optics techs explain the optics package deer hunters will want to take into the field. Along with a good medium-power zoom riflescope, you’ll want binoculars and (probably) a spotting scope. You’ll also want a Laser Rangefinder (LRF) or laser-equipped binoculars. As the team points out, the LRF is not just to range your prey right before you take a shot. A top-quality LRF can range a reflective object as far as 1500 yards away. That helps you decide whether you want to hike a mile to reach that buck you see way out on the next ridge.
How to Sight-In Your Hunting Rifle
This video offers good basic advice for sighting-in a hunting rifle. There are a series of six points covered. Here’s Tip #1: “Find a safe place to shoot your rifle with a backstop. If possible, use a bench and a rock-solid shooting rest. Sighting-in is all about consistency, so the less human error you have, the better. For safety, be sure to also bring ear and eye protection.” READ FULL ARTICLE on NRAWomen.com.
Ace tactical shooter and gunsmith Jim See of Elite Accuracy LLC has tested a Frankford Arsenal rotary brass tumbler. Like the older Thumbler’s Tumblers, this can tumble your cases in a liquid solution. The wet-tumbling process worked very well Jim reports. Posting on Facebook, Jim noted: “I was super impressed with the Frankford Arsenal rotary tumbler and cleaning packs they sent me. I ran 350 pieces of brass for one hour. They now look great.” Jim appreciated not having to deal with dry tumbling media, such as crushed walnut shells. Dry media produces dust and can leave residues or clog flash-holes.
Interestingly, Jim recommends you try wet-tumbling WITHOUT using stainless media. At least give it a try. Tumbling without media simplifies the process and you don’t have to worry about pins stuck in flash-holes or case-necks*. Jim reports: “Stainless steel pins come with the Frankford kit, but mine hit the trash right out of the box. There is no need to clean the inside of your cases 100% and that’s all the pins add to the equation. The brass bumping brass with hot water and Frankford’s liquid cleaner works great all by itself.” One wag stated: “That’s great to hear. Stainless steel pins are a PITA.”
Other Facebook posters concurred with Jim’s evaluation of the Frankford Arsenal Rotary Tumbler:
“I’ve had one for a couple years, and it works well. I usually run about 250-300 Dasher cases at once in it. But I use the pins because I’m OCD about clean brass.” — David W.
“I’ve had one for a year and a half and it definitely works with or without pins.” — Luke C.
“I got one about six months ago and have yet to use any stainless steel media [pins]. I just use some dawn, distilled water, and Lemi Shine®. Turns nasty 5.56 range brass bright and shiny.” — Brian D.
“I don’t use the pins either and use a combination of Dawn soap and Lemi Shine.” — Jon N.G.
This video shows how to assemble and operate the Frankford rotary tumbler. But note, Jim See does NOT feel that it is necessary to use stainless media.
How to Dry Your Brass — Hair Dryer Vs. Machine
The downside of wet tumbling is that you end up with a pile of wet brass at the end of the cleaning cycle. There are many ways to dry brass, from drying in the sun to using a kitchen oven (be careful not to “overcook” your brass). One Facebook poster asked Jim: “What is your drying method for wet brass, and how long does it take?”
Jim See replied: “To start I just drain off the dirty water, and rinse the brass with clean hot water. Then I roll the brass on a towel for 30 seconds and put the brass in a one-gallon bucket. Next I insert a hair dryer in the bucket (with the brass) and let it run for about 5 minutes. With this procedure, the drying process for me is done in less than 10 minutes.”
Jack Lanhart has another method: “I use a food dehydrator. It takes 30 to 45 minutes.”
For those who don’t want to mess with towels and hair dryers, Frankford Arsenal offers a matching Platinum Series Case Dryer ($67.99 on Amazon) that simplifies the process of drying brass. Lyman also makes an excellent Cyclone Case Dryer ($81.99 on Amazon). These drying machines both have multiple levels so you can separate different types of cartridge brass. Lyman states that “The forced heated air circulation of the Cyclone will dry your brass inside and out within an hour or two, with no unsightly water spots.” The Lyman dryer can also be used for ultrasonically-cleaned gun parts.
*The Frankford Rotary tumbler does include media separators if you choose to use the provided pins or other media. CLICK HERE for diagram showing how to use media separators.
Have you ever wondered how Olympic-class position shooters hold their aim so steady? Those bulky shooting coats help, but there is a lot of bio-mechanics involved also. Top shooters employ their body structure to help support the weight of their rifles, and to steady their aim. This interesting video, produced by GOnra Media, demonstrates rifle hold and body alignment for prone, standing, sitting, and kneeling positions. Olympic Gold Medalist Jamie Corkish (formerly Jamie Gray) demonstrates the proper stance and position of arms and legs for each of the positions.
Ideally, in all of the shooting positions, the shooter takes advantage of skeletal support. The shooter should align the bones of his/her arms and legs to provide a solid foundation. A shooter’s legs and arms form vertical planes helping the body remain stable in the shooting position.
Jamie Corkish, London 2012 Gold Medalist in Women’s 3 X 20, has retired from top-level competitive shooting. However, Jamie remains involved in the shooting sports as a Public Relations/Marketing representative for ELEY, a leading maker of rimfire ammunition. Jamie also works with shooting clubs and educational institutions to promote smallbore target shooting.
Images are stills from GOnraMedia video linked above.
Killough Shooting Sports (KSS), the Texas-based retailer serving precision rimfire, benchrest, and competitive pistol shooters, has a new and improved online store at KilloughShootingSports.com. The new site has been designed around how serious shooters actually shop: by discipline, by rifle, and by the specific grade of ammunition they are looking for. The new site has faster page loading, faster check-out, and more payment and shipping options.
“Our customers know exactly what they want, and they want to get to it quickly,” said Michael Atkinson, KSS Sales and Marketing Director. “Whether that is a case of ELEY Tenex, a rimfire barrel or a front rest for the next benchrest match, the new site gets them there in fewer clicks, and it gives us a far better platform for looking after them once they have ordered.” KSS is the home of ELEY, the British manufacturer of world championship and Olympic-winning .22LR ammunition. ELEY’s US customer ammunition testing is carried out at Whidden Gunworks.
Same day dispatch and delivery direct to the match
Every order placed before 2:00 pm Central is dispatched from the KSS warehouse in Brownsville, Texas, the same day.
Delivery Direct to Shooting Match Locations
KSS also offers a unique service — free shipping to competitions. Competitors can pre-order their ammunition through the store and have it delivered directly to the match, eliminating the need to travel with ammunition cases.
The Full ELEY Ammo Selection including ELEY X-Shot
KSS is an online source for the complete ELEY .22 LR range, from recreational and training grade ammo through to Match, X-Shot, and Tenex.
Full Product Line at Killough Shooting Sports Store
Actions | Barrels | Stocks | Rests | Scope Mounts | Targets | Ammo
Along with .22 LR rimfire ammunition, the KSS store has ELEY 9mm and .38 Super competition ammunition, actions, stocks, rimfire rifle barrels, scope mounts, deluxe front rests, plus targets and cleaning supplies. Products come from leading manufacturers including Benchmark Barrels and Burris.
The new website gives KSS a more reliable checkout, faster page loading, enhanced mobile functionality, and modern payment and shipping options. For more info, visit KilloughShootingSports.com
Talented sharpshooter Kirsten Joy Weiss is featured in an episode of NRA All Access. The show covers Kirsten’s development as a competitive shooter, and her success as a trick-shot artist with her own popular YouTube channel. Here’s the All Access segment featuring many of Kirsten’s most famous trick shots.
During the video Kirsten also talks about her background in shooting and how she wants to be a good ambassador for the shooting sports, “spreading the positive reality of shooting”. Kirsten explains: “The fun challenge and joy of shooting is important to me because I really wanted to be a positive example. So when the media says the ‘guns are a bad thing and nobody does anything good with guns’, they can say ‘Well, what about her [Kirsten]’?”
Kirsten: “I think that it’s important for young girls to have somebody that they can look up to… I feel responsibility to show young shooters coming up, especially females, that you can respect yourself and shoot a gun as well.”
A gifted “natural” shooter, Kirsten started shooting fairly late — at age 16. Despite her relatively late start, she learned very quickly, and managed to earn a place on the University of Nebraska shooting team. That literally opened up a new world for Kirsten: “During the course of my career, I’ve had a lot of success. I’ve gone to World Cups… in Zagreb, Croatia, in Munich, Germany. I’ve won National Championships, and got on to the U.S. Olympic short list, so it’s been a good career.”
Proper Cheek Weld
No matter what your discipline — smallbore, silhouette, High Power, F-Class, or even PRS — it’s vital to have a consistent cheek weld for every shot. You want your head to be in the same position on the stock each time. This helps ensure proper eye-to-sights/optic alignment and consistent rifle balance.
In this video, Kirsten explains how to find the best position for your head on the stock, which may require adjusting the cheekpiece and/or length of pull. Then Kirsten demonstrates how to maintain consistent cheek weld shot after shot.
Kirsten tells us: “A lot of people don’t think of shooting as a sport, but it absolutely is, and I would even go so far as to say that it is an art form.” We don’t know if this is art, sport, or magic, but very few shooters have the skill or flexibility to make this upside-down shot…
When shooting targets, the closer to the center the better the result. But this is not necessarily true when it comes to using jags and patches. There are some good reasons to try spiking your patches away from the center. This Creedmoor Sports Tech Tip explains why you may want to spike (puncture) your patch away from the center. CLICK HERE to order patches and Swab-Its cleaning bore tips from Creedmoor Sports.
You begin to push your first patch down the barrel and you notice it is extremely tight and then it jams! How can this be? A commonly overlooked solution to remedy the frustrating occurrences of overly tight or jammed patches is what we like to call “Side-Spiking”. Side-Spiking is super simple and works!
“Side-Spiking”, as the words suggest, refers to moving your patch spiking position from the center of the patch towards the corner of a square patch or the edge of a round patch.
Moving From Center-Spiking To Side-Spiking
The closer toward the edge of the patch you spike your jag, the looser the patch will be when pushed down the bore.
Important: Be careful to not go to the very edge of the patch. Leave enough patch material to fully cover the first set of rings on your jag as this insures your jag is properly centered in the bore and that no contact with the rifling will occur.
Proper Side-Spiking Location Creedmoor Sports recommends side spiking all wet patches. This allows for a looser patch in the bore which removes gross powder fouling and leaves more cleaning solution behind to start working on the remaining fouling.
When a tighter patch is needed, simply move your spike closer toward the center of the patch. The closer to the center of the patch you get, the tighter the patch will become in the bore. The objective is to have a snug-fitting patch that allows you to smoothly push your rod down the bore. Remember you do not need to end up in the center of the patch!
Bore-Tech Patch Size Selection Chart Recommends Patch Sizes by Caliber:
Shown are funnel with ultra-long drop tube (which helps get more kernels in the cases), RCBS Chargemaster (in wood box), and Hood Press (similar to Harrell’s Combo press).
Loading at the range remains important in the Benchrest for Group discipline. In a Special Report below, past IBS President Jeff Stover explains how loading methods (and hardware) have evolved over the years. The advent of accurate, affordable electronic powder dispensers, such as the RCBS ChargeMaster and Frankford’s new Intellidropper, have changed the game and made it easier to load efficiently at the range. And quality manual powder measures are fast and can be very consistent, with a little practice. Loading at the range permits competitors to tune their load to the conditions, change seating depths, or even choose different bullets to suit the barrel’s preferences on any given day.
Although pre-loading is not uncommon, most 100/200-yard group shooters usually load at the match, often between relays. The goal is to shoot smaller groups by staying “in tune”. In a game where 5-shot groups “in the 1s and Zeros” is the goal, tuning loads for the conditions helps deliver match-winning accuracy. Nearly all competitors in this short-range discipline shoot the 6mm PPC cartridge, or a PPC variant.
Loading at the Range — Then and Now
In benchrest shooting for group, loading at the range has been de rigueur for decades. In the Score discipline, preloading is usually the custom. The main reason is that, in Score competition, only one Aggregate (warm-up match and five record targets) per day is usually shot. That would be less than 50 shots, assuming a few sighter shots. Also, the 30BR, the dominant Benchrest-for-Score cartridge, is very amenable to pre-loading.
By contrast, the Group discipline includes 21 targets (two warm-ups and twenty record targets) over a weekend, usually shot with 6PPC-chambered rifles. Many times, the 6PPC shooters may tweak their loads through the day given changing atmospheric conditions or simply trying to find the correct tune to “dot up”. This term, “Dot up”, means the shots are essentially going through the same hole, or closely so.
Loading at the range was a bit different when benchrest competition was in its infancy. The 1951 book, Modern Accuracy by Bob Wallack, is the best of the early benchrest books. Copies can be found, from time to time, on eBay or Alibris. It is a fascinating survey of benchrest as it existed more than six decades ago. There’s even coverage of a controversial target that was argued over at the time. In it, there is a photo of Wallack using the rear bumper of a car at the bench to clamp his reloading tools. Things have come a long way compared to the range loading set-ups of modern shooters. Here you can see Bob Wallack way back in 1950:
Modern loading bench set-ups shown in this Special Report belong to top shooters Howie Levy, Bob Hamister, and Kent Harshman.
Here’s something you don’t see every day — the inside of loaded cartridges, sliced halfway through. This lets you see how bullet core, jacket, cartridge case, powder, and primer all fit together. Give credit to the folks at FOG Ammunition for creating this interesting series of cut-through ammo images. We show four cartridges here: the .308 Winchester, 9mm Luger, 300 BLK, and .50 BMG. You’ll find two more (the .223 Remington and .45 ACP) on the original FOG Ammo Blog Article.
This .308 Winchester model took on a different approach by only cutting the brass case and displaying the full bullet, primer and powder load. A spec amount of powder was used to create the model powder form. An estimated 10% volume was added during the forming process, along with an undetermined amount of air pockets.
This bisection is a 9mm Luger Jacketed Hollow Point round with flake powder held together with super glue. After this self-defense round was cut by a trained professional the round was polished by hand. This might look like stick powder, but those are in fact flakes stacked up in cross-section. Designed in 1901 by Georg Luger, this popular cartridge is used by civilians, military, and law enforcement.
For this model of the .300 AAC Blackout (aka 300 BLK), a Dremel tool was used to create a pie cut within the bullet and brass case. A measured amount of power, roughly 65% of spec charge, was placed inside the case with super glue. This cartridge was originally optimized for subsonic use with a suppressor, so the amount of powder used is small relative to the nominal case capacity. That leaves more room for the relatively large .30-caliber bullet.
Last but definitely not least is the .50 Caliber BMG round (aka .50 Browning Machine Gun). Famed for its wartime use in the M2 Machine gun, the .50 BMG round is also used in civilian Long Range competitions. A typical .50 BMG cartridge holds over 225 grains of powder. That’s almost ten times the amount in a 5.56×45 NATO Round! To demonstrate the size of the .50 BMG, check out that .223 Rem for comparison.
Close-up view of a sectioned case. This one here was “fixin’ to pop”, observed Glen Zediker.
Here are highlights from an article Glen Zediker wrote for the Midsouth Blog. In that article Glen, who sadly passed away in 2020, focused on cartridge brass. Glen identified the most common failures that appear with brass that has been shot multiple times, or which has been fired at excessive pressures. Glen explained some simple ways to check your cartridge brass to detect “early warning signs” of case failure, particularly case head separation, which can be very dangerous.
How Cases Degrade with Multiple Firings By Glen Zediker
This article explains when, and then how, to check after the progress of changes commencing with the firing on a new case. It’s the “progress of degeneration,” in a way of looking at it because the concern is getting a handle on when enough change in the brass has come about to require attention. Or abandonment. As said then, for me that’s 4 firings. That, as said last time, is when I might see changes that need attention. Also as said, that figure didn’t come out of a hat, but from my own notes in running my competition NRA High Power Rifle loads. [Editor’s Note: With Lapua brass, using moderate loads, in bolt-action rifles, we typically get about 10 good (match-worthy) firings. But if you anneal your Lapua brass, and run modest pressures, Lapua brass can perform well for 20 or more load cycles.]
The areas most affected are the case neck and case head area. Case neck walls get thicker [but] the case head area body walls get thinner. Primer pockets get shallower and larger diameter.
This case shows a cracked neck AND a crack (separation) above the case head. Zediker says it is “rare to see one case with both of the most common failures. [This case] was attacked by an M14.”
Case Head — Causes of Separation and Cracking
When a case is under pressure during firing, the brass, like water, flows where it can, where it’s more free to move. Of course, the chamber steel limits the amount it can expand. The case shoulder blows fully forward and the case base is slammed back against the bolt face. There is, therefore and in effect, a tug on both ends — it gets stretched. The shoulder area is relatively free to expand to conform to the chamber, but the other end, the case head area, is not. Since that’s the area of the case with the thickest walls, it doesn’t expand “out” much at all. What it does is stretch. The “case head area,” as I refer to it here, is the portion of the case above the web, which is just above the taper that leads in to the extractor groove. The “area” extends approximately an eighth-inch up the case body.
Here’s a “pressure ring.” You’ll see this after firing, if you see it. And, if you see it, that case is done. The bright ring indicates excessive stretching, which indicates excessive thinning. If you see a ring circling the case, noticeable because it’s lighter color than the case body, and it’s in this area, I’d say that case is done. And that’s right where a “head separation” occurs. It can crack and also blow slap in two, and that’s the “separation” part of case head separation.
Photo courtesy GS Arizona.
This is a spot to keep close watch on as cases age. It is also the area that is more “protected” by sizing with less case shoulder set-back. That is, pretty much, where the freedom for the stretching movement in this area comes from (the case shoulder creates a gap). If you’re seeing a sign that a head separation [might happen with relatively few firings], chances are the shoulder set-back is excessive, and also… the load pressure level.
Bent Paper Clip Case-Wall Gauge
Editor: You can use a bent paper clip to detect potential case wall problems. Slide the paper clip inside your case to check for thin spots. GS Arizona explains: “This simple little tool (bent paper clip) will let you check the inside of cases before you reload them. The thin spot will be immediately apparent as you run the clip up the inside of the case. If you’re seeing a shiny line on the outside and the clip is really hitting a thin spot inside, it’s time to retire the case.” Photo by GS Arizona.
Monitor Primer Pocket Dimensional Changes
Another case-head-area and pressure-related check is the primer pocket. As said, the primer pocket will get larger in diameter and shallower in depth each firing. As with many such things, the questions are “when” and “how much,” and the main thing, “how much?”
If the pocket gets excessively shallow, and that’s judged by a primer that seats fully but isn’t at least a tick below flush with the case base, there could be function issues. There’s a risk of a “slam-fire” with a semi-auto that uses a floating firing pin, and, if there is actual protrusion, that has the same effect as insufficient headspace. A primer pocket uniformer can reset the depth of a shallowed primer pocket to what it should be, but the real test for me is how easily the next primer seats into it. If it’s significantly less resistance, I’ll say that case is done. Shallower can be refurbished. That’s a primary function of a primer pocket uniformer. Larger diameter, though, can’t be fixed. I’ve mentioned in another article or two that, any more at least, my main gauge of load pressure has become how much primer pocket expansion there’s been.
Q: Why did you choose to build this rig?
A gifted “natural” shooter, Kirsten started shooting fairly late — at age 16. Despite her relatively late start, she learned very quickly, and managed to earn a place on the University of Nebraska shooting team. That literally opened up a new world for Kirsten: “During the course of my career, I’ve had a lot of success. I’ve gone to World Cups… in Zagreb, Croatia, in Munich, Germany. I’ve won National Championships, and got on to the U.S. Olympic short list, so it’s been a good career.”
“Side-Spiking”, as the words suggest, refers to moving your patch spiking position from the center of the patch towards the corner of a square patch or the edge of a round patch.
