In July and August we should be talking about the CMP Games at Camp Perry (Ohio) and the National Matches at Camp Atterbury (Indiana). Instead, all these events have been cancelled due to the COVID-19 Pandemic. Thankfully, the CMP is organizing a local match series that can provide some competitive fun in summer 2020.
To fill the void of the unfortunate withdrawal of the 2020 National Matches from the annual schedule, the Civilian Marksmanship Program (CMP) have prepared a solution that will allow competitors to compete with one another during the summer months at their local ranges.
The CMP has created special series of matches for Summer 2020 — the “Home Range Appreciation Series”, a collection of High Power rifle, pistol, smallbore rifle, air rifle and pistol competitions, shot at local facilities, and open to both adult and junior athletes. Scores from all the CMP-sanction home range matches will be complied together, and all participants will receive a commemorative t-shirt and coin. In addition, sponsors will provide awards such as gift certificates, memorabilia, and ammunition.
Home Range Shooting Matches are Underway
Since early June, scores have been pouring in weekly for the CMP’s (CMP) Home Range Appreciation Series of events. Introduced to supplement the cancelled 2020 National Matches in Ohio and Indiana, clubs from Texas, Mississippi, Wyoming, New York and several other states have conducted an assortment of rifle, pistol, smallbore and air rifle competitions at their local ranges.
One Home Range event was held at Hornell Sportsman’s Club in New York. “Thanks, CMP, for opening the Home Series,” said the Club’s CMP match coordinator, Joe Menichino. “We are all disappointed that the Perry matches were cancelled, and this series gives us a chance to shoot and compete.”
GENERAL INFORMATION
Each local match will be sanctioned by a CMP Affiliated club. All matches MUST be fired by September 8 and results received by September 14, 2020. All results will be final on October 1, 2020. A list of matches will be posted on the CMP website. Participants may fire in more than one event of the same discipline, but only the scores of the first event will be recorded, with the exception of the White Oak 1600 Aggregate which is two 800 Aggregate matches. This event maybe fired at different locations for competitors to complete their two 800 Aggregate matches.
SAFETY and HEALTH CONSIDERATIONS
The CMP reminds clubs to follow all state and local health guidelines and health advisories. Recommended range health practices include: limiting/spacing the number of participants who congregate for safety briefings, spacing out firing points, leaving empty firing points between shooters, ensuring participants wear masks, washing hands frequently, providing disinfectant wipes, and continuously cleaning common surfaces such as shooting benches and equipment.
For questions on Rifle, Pistol or Games Matches, contact Christina Roguski at croguski [at] thecmp.org or (419) 635-2141, ext. 714. For questions about Smallbore Matches, contact Brad Donoho at bdonoho [at] thecmp.org or (419) 635-2141, ext. 730. For Air Rifle match questions, contact Katie Harrington at kharrington [at] thecmp.org or (419) 635-2141, ext. 731.
The NSSF has posted a video featuring Bryan Litz of Applied Ballistics. Bryan also serves as Chief Ballistician for Berger Bullets and ABM Ammo. In this short video, Bryan explains the importance of ballistics for precision shooting at long range. Bryan covers key elements — drop, wind drift, angle correction and more. And Bryan also explains the key difference between Accuracy and Precision.
The principles Bryan discusses are covered (in greater detail) in the Putting Rounds on Target instructional DVD set. This 3-Disc collection boasts a total run-time of 3 hours and 37 minutes. The three DVDs, with many graphics and video segments, deliver as much information as a weekend shooting seminar… at a fraction of the cost. The 3-DVD set sells for $44.95.
Disc 1
• Accuracy & Precision
• Tall Target Test
• Chronographs & Statistics
• Ballistic Coefficient
• Trajectory Terms
• Run Time: 1 hour, 4 min
Disc 2
• Primary Elevation (Wind)
• Secondary Effects
• Using Ballistics Solvers
• Short & LR Equipment
• Run Time: 1 hour, 11 min
Disc 3
• On The Range: .308 Win
• On The Range: .284 Win
• On The Range: .338 LM
• Extended Range Shooting
• One Mile Shooting
• Run Time: 1 hour, 22 min
Brownells is a well-known retailer of guns, gun parts, tools, accessories, ammo, and pretty much everything gun related. What you may not know is that Brownells has a very active video production department that releases new “how-to” and product information videos every week. These videos offer helpful advice on gun cleaning/maintenance, reloading, as well as selecting/assembling components for various kinds of rifles. And every week Brownells serves up a new products video. There now over 1000 videos on the Brownells YouTube Channel, this really is a remarkable resource.
Here are six of our favorite recent videos from Brownells. AR owners will find some good advice on spare parts, new reloaders can learn how to use the OAL tool, and all gun owners should watch the video on ammunition storage.
Introduction to PRS Competition
In this video, Tom Beckstrand, former Special Forces Sniper Team Leader and Guns & Ammo magazine staffer, looks at the Precision Rifle Series (PRS). Tom covers the types of stages in a typical PRS match using unconventional, real-world shooting rests. He also discusses the equipment you’ll need including bag supports, bipods, tripods, and optics. As most ranges aren’t set up for PRS, Tom offers tips on how to train at your local range.
How to Use Hornady OAL Tool and Hornady Bullet Comparator
Gun Tech Steve Ostrem explains how to properly use Hornady’s Overall Length Gauge to determine length-to-land precisely. The OAL Gauge uses a “Modified Case” that theads onto the tool and holds a bullet. Push on the back of the gauge until you feel the bullet just touch the rifling. (We do this gently at first, tapping the rod a couple time to ensure the bullet is aligned correctly). Once you’ve got the length, then use the tool with a comparator on your calipers to get the lenght-to-lands. NOTE: We recommend taking the measurement 3-4 times in a row to get a reliable number. With a little practice your should be able to get repeatable measurements within .0015″.
New Bog Pod Tripod and Caldwell Electronic Muffs
Brownells staffer Paul Levy showcases the impressive new DeathGrip Tripod from Bog Gear. The DeathGrip’s adjustable jaws clamp firmly to the rifle’s forearm. This is a useful device for both PRS shooters and hunters. The head assembly has 25-deg front/rear tilt and 360-deg swivel. And the jaws’ non-slip, rubberized padding won’t scratch that stock. The legs snap open to three pre-set hard stops, and there’s plenty of length extension. Easily switch between rubber feet and steel spikes without removing a single part from the trippod. This video also features Caldwell’s E-Max™ Pro noise-cancelling electronic muffs. These affordable 23 dB NRR units boast dual microphones and digital volume controls, and two sizes are offered — Youth and Adult.
How to Store Ammunition Safely and Securely
Notably, this is the single most popular Brownells video this year, with 494,000 views since March 2020. Here’s the deal — ammunition WILL keep for a long time if you store it properaly. DO store ammunition in a cool, dry place that doesn’t have wide temperature swings. Temperature cycling will also degrade primers and powder. Put it in airtight ammo cans to keep out the moisture. Tupperware containers will work too. Brownells also recommends putting moisture-absorbing silica packs in your ammo containers. DON’T just keep ammo in factory cardboard factory boxes stacked in the basement, attic, or garage — especially not on the floor! The ammunition boxes will absorb moisture which will degrade primers and powder and corrode the brass cases. Yes, sealed military ammo will usually handle this kind of storage for quite a while, but it’s still not wise.
Must-Have Spare Parts for AR-Platform Rifles
This is one of Brownells most popular recent videos, with 154,000 views in just four months. Two gun technicians answer the question: “What spare parts should I keep on hand for my AR-15?” On the list are: Gas Rings, Buffer Spring, Extractor Spring and Pin. NOTE: You may want to try the one-piece spiral gas ring rather than the standard rings which require alignment. The cotter pin and cam pin can also easily get lost when the Bolt Carrier Group is disassembled for cleaning. On the lower receiver you’ll want spare springs and detents for the pivot/takedown pins. If you’re using lighter-power springs, keep standard-power spares on hand. If your rifle stops working, swap in the factory-spec springs to find out if the problem is the gun or your ammo. Also, if you have upgraded your trigger, always keep the original trigger as a backup.
Cleaning Advice for .22 LR Rimfire Rifles
Gun Techs Steve Ostrem and Caleb Savant debunk some myths about cleaning .22 LR barrels. One myth is that cleaning will harm the accuracy of a .22 LR barrel. Caleb thinks this myth is the result of people cleaning a barrel from the muzzle and damaging the muzzle crown, which CAN diminish accuracy. If it’s done right, cleaning won’t damage the bore. However, you certainly do NOT have to clean your 22 LR’s bore every time you go to the range. But DO clean the action every time you shoot the rifle, especially on a semi-auto. What about shooting a lot of lead bullets? Won’t that lead up the bore? The guys give us the straight skinny on lead fouling, too. When you see your .22 LR rifle’s groups opening up, you may want to consider cleaning.
Do you shoot long, pointy Hybrid Ogive bullets? If so, you may need to modify the Hornady L-N-L Bullet Comparator tool commonly used to measure the distance from bullet base to bullet ogive.
With modern, high-BC match bullets, so much of the bullet may extend forward of the ogive that the bullet tip actually contacts the inside of the red comparator body BEFORE the bullet’s ogive contacts the gray caliber-specific insert ring attached to the red body. When this happens you will NOT get an accurate Base-to-Ogive (BTO) measure. And likewise you will not get a proper Cartridge-Base-to-Ogive (CBTO) measurement with loaded rounds.
Watch this video — it shows exactly how this measurement “fail” can happen with a .338-caliber Berger Elite hunter bullet. The tester was getting a false bullet Base-to-Ogive reading of 1.175 (0:25 timemark) before modifying his tool. The true BTO measurement, with the bullet actually contacting the gray comparator ring, is 1.121 (1:25 timemark):
How to Fix the Problem
What’s the fix? With a drill, you must relieve the back “wall” inside the red comparator holder bore. This will provide more clearance for the bullet tip. With more clearance the bullet ogive will seat properly on the gray, caliber-specific insert. The tip will no longer bottom out on the red clamping half of the tool.
The maker of this helpful video, EuLRH explains: “As we all know the CBTO (Cartridge Base to Ogive) measurement is [more useful than] COAL (Cartridge Overall Length). There are lots of products that can do this. One of them is Hornady L-N-L bullet comparator. Attention! With modern long range bullets it is possible that the bullet tip is touching the comparator body instead of the bullet ogive touching the gauge.” In this example, EuLRH worked with the 300gr Berger elite hunter bullet in .338 Caliber.
Why You Need to Check with Your Own Loads
If your bullets have this “tip touching” issue, when you measure your loaded rounds you will be seeing COAL instead of the Cartridge Base to Ogive (CBTO) length. Take a moment, test with your own bullets and your comparator to determine if you have this measurement problem. If you do, try the drilling solution shown in the video.
At the request of our readers, we provide select “Deals of the Week”. Every Sunday afternoon or Monday morning we offer our Best Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, optics, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
1. Bruno Shooters Supply — Massive BAT Action Sale
⏺ Superb BAT custom actions, over 80 on sale at $100 Off
BAT actions have an amazing reputation and are available in more configurations that just about any other action on the market. Head over to Bruno Shooters Supply and choose from over 80 BAT Actions on sale. Many models are avaiable, all discounted $100 off Bruno’s normal pricing. This BAT promo gets you $100 closer to that elite custom rifle you’ve always wanted.
⏺ Great deal on hunting rifles with Vortex Scope, 6.5CM, .308 Win, .243 Win
Sportsman’s Warehouse is running a special on Ruger rifles with Vortex scopes. For $539.99 you can get this Ruger American in 6.5 Creedmoor topped with a Vortex Crossfire II 3-9x40mm scope with Dead-Hold BDC reticle. For the same $539.99 price you can also get this rifle in .308 Win, or .243 Win, also scope-equipped. This is a very good option if you are looking for an affordable hunting rig, ready to go.
3. EuroOptic — Vortex Optics Scope Clearance Sale
⏺ Super-low prices on scopes for PRS, Hunting, and Tactical
Maybe you’re in the market for a new scope for your AR or perhaps you’d like more magnification for your long-range rig. No matter what you’re in the market for, EuroOptic is running a huge Vortex Clearance Sale on scopes ranging from 1-4x24mm up to 6-24x50mm all at crazy low prices. If you’re planning a future build, you may want to grab one of these scopes now — the prices are exceptional.
4. Graf’s — Hornady A-Tip Bullets, All Calibers, Good Prices
⏺ High BC A-Tips, wide selection of calibers
Hornady A-Tip bullets has started to earn a place on the line as more and more people are learning how to load and shoot them. As a result stock levels have been spotty at best in popular calibers. At Graf & Sons, we found a full selection of Hornady A-Tip bullets, including hard-to-find bullet weights. If you’ve been interested in trying A-Tips, grab these before they sell out.
5. Bullet Central — Bix’n Andy Benchrest Trigger, $385.00
⏺ Truly superb Benchrest match trigger or get Dakota Trigger for $195.00
Having a light and reliable trigger is critical to success in many disciplines. The Bix’n Andy Rem700 Benchrest Trigger is one of the best out there. With its easy-to-change pull weight and a ultra-crisp break it’s the choice of many competition shooters. If you’re looking for something with a slightly heavier pull at a much lower price, check out the $195.00 Dakota Trigger.
6. Amazon — Tipton Best Gun Vise, $87.54
⏺ Versatile, stable, works with all rifles, including ARs
You need a stable platform at home for your gun when clealing, and most gun vises are too light or unstable to do the job properly. If you’re looking upgrade to a better solution than what you have, grab the Tipton Best Gun Vise. The vise was designed to accommodate the widest possible array of firearms for cleaning, maintenance, or gunsmithing, and is easily configurable to handle bolt-action rifles, break-open shotguns, AR-15s, and handguns. You can also purchase this excellent Gun Vise for $89.99 at Midsouth Shooters, also a good deal.
7. MidwayUSA — MTM Shooting Range Box, $41.16
⏺ Great unit holds gear and has cradles for cleaning
Whether heading to the range or a weeklong competition, having all your cleaning gear in one easy-to-use place is critical. Enter the MTM Shooting Range Box. This will hold solvents, jags, brushes, patches, guide rods, and tools. PLUS this unit has cradles to support your rifle. This Editor has been using the MTM Range Box for years and wouldn’t dream of attending a match without it. Order now from MidwayUSA for $47.99, or back-order from Midsouth Shooters for $41.16.
8. Amazon — Motion-Sensor LED Interior Light, $15.99
⏺ Activates when door opens, Rechargeable, 3 LED Light Levels
Here’s a great accessory for your Gun Safe or closet. This rechargeable LED lamp turns itself on when you open the door, and off when you close the door. Select three brightness levels: 10LED, 20LED, 30LED. With the supplied 3M adhesive magnetic strip you can easily attach the light to the inner walls of your gun safe. And then quickly remove the unit for charging with a standard USB cord (no batteries to replace!). It works, it’s handy, and it’s inexpensive — just $15.99 on Amazon. These motion-sensor LED lamps can also be used in garages or stairwells. NOTE: this is Amazon’s choice for rechargeable LED Motion-Sensor lights.
9. Amazon — Tipton Universal Bore Guide, $13.59
⏺ Very inexpensive but versatile for full range of chamber sizes
Bore cleaning is critical for rifle longevity and accuracy. But you need a good bore guide to avoid potential damage to your chamber and bore. This handy Tipton Universal Bore Guide ships with multiple chamber adapters. Three tapered tips are included (small fits calibers .17-.24, medium fits most calibers .25-.30, and large fits most calibers over .30). This Universal Bore Guide includes an action collar for AR rifles.
August is National Shooting Sports Month. The goal this month is to celebrate the fun and challenge of shooting, AND, most importantly, to introduce new shooters to the sport. The NSSF encourages all experienced firearm owners to invite a new shooter to the range this month. At the range, act as a mentor for the new person, teaching him or her about safety and the various shooting disciplines he/she can try.
To encourage new shooters, the NSSF has created a special target. With this fun target, you shot five bulleyes, with three different scoring challenges. Download printable PDF targets with the links below.
Win Valuable Prizes with +ONE Gear Giveaway Contest
To promote National Shooting Sports Month, the NSSF is running a +ONE Gear Giveaway contest. You can enter to win one of an impressive collection of +ONE GEARBOX prize packages. These prize collections include rifles, pistols, shotguns, RCBS presses, carry cases, tools, hearing protection, support bags, steel targets, ultrasonic machines, clothing, and more. Guns come from SIG Sauer, Mossberg, Glock, and Primary Arms. Check out the Gear Giveaways below. IMPORTANT: You have to enter separately for each prize package. CLICK HERE to ENTER Gear Drawings.
NSSF 2020 Gear Giveaway — Six +ONE GEARBOX Prize Packages
Jeff Quinn, founder of GunBlast.com, was a good-hearted, southern country boy who loved firearms. Sadly he passed away on July 27, 2020. He will be missed. His reviews were always honest and thoughtful. Notably, Jeff was a true internet pioneer. With help from his brother Boge Quinn, Jeff created Gunblast.com back in 2000. He was one of the first independent writers publishing gun reviews on the internet. And he also was one of the very first to release gun test videos on YouTube. Over the past two decades the GunBlast YouTube channel has racked up over 64 million views. Jeff Quinn led the way for popular YouTube video hosts such as 22Plinkster and Hickok 45.
This Sunday Gunday, to mark Jeff’s passing and recognize his influence in the world of firearms videos, we are reprising six of his videos from the past decade. There are a wide selection here — both rifles and pistols, rimfire and centerfire. We’ve even included a special video where Jeff tests a pre-WWI era Maxim machine gun.
The Patriot — Accurate .22-250 AI Benchrest Rifle
While Jeff Quinn focused on factory handguns, hunting rifles, and defensive shotguns, he did occasionally sample accurate custom rifles. Here he tested a unique “Patriot” .22-250 AI rig built on a sleeved Remington 700 action. This handsome rifle boasts a custom-painted, thumbhole benchrest stock with a stars-and-stripes motif. One side says “In God We Trust”, while the other side carries the message “The Right to Keep and Bear Arms”. This “Patriot” rifle delivered three-shot ragged-hole groups at 100 yards.
Tales from the Vault — Winchester 1895 Lever Gun
Along with his regular field tests, Jeff hosted videos that focused on the historical heritage of some of his favorite firearms. In the “Tales from the Vault” episode, Jeff showcases a prized example from his personal gun collection. This is an original Winchester Model 1895 lever-action rifle chambered in 30 Army, also known as 30-40 Krag.
Smith & Wesson Performance Center M629 .44 Magnum
Smith & Wesson builds some of the best wheelguns on the planet, and Performance Center models are the top of the S&W lineup. This Editor owns two S&W Performance Center revolvers, and they are both outstanding, with great triggers and accuracy that puts most semi-auto handguns to shame. In this video, Jeff Quinn tests a Performance Center six-shot Model 629 Hunter Revolver with a 8 3/8″ fluted barrel. S&W includes a Weaver-type optics rail with this capable wheelgun.
Shooting the Savage A17 in 17 HMR
The Savage model A17 delayed-blowback semi-auto in .17 HMR is one of our favorite budget varmint rifles. It is affordable, reliable, and surprisingly accurate with good .17 HMR ammo. Here Jeff Quinn tests the basic A17. We like the upgraded version with a laminated thumbhole stock, shown below. But both versions utilize the same well-designed action. This is a good choice for small varmints, such as ground squirrels, out to 200 yards.
Ruger GP100 .22 LR 10-Shot Revolver
We believe every gun enthusiast should have a good rimfire revolver, and Jeff Quinn would concur. The small size of the .22 LR cartridge allows modern wheelguns to have 10-round cylinder capacity. That’s great for target shooting, fun plinking, and gun games. Here Jeff reviews the sturdy .22 LR GP100 from Ruger. Jeff says this pistol offers “a good tight barrel/cylinder gap” and “positive ejection that kicks spent cases out really well.” He noted that this pistol was “amazingly accurate”. He tested 9 different ammo types and got 1.5″ average TEN-shot groups at 25 yards. (See video at 2:40 for targets.)
BONUS Video — Maxim Machine Gun (1914 Vintage)
The Maxim machine gun was one of the earliest successful fully-automatic weapons. Many of its revolutionary design features are still used in modern machine guns. Here Jeff Quinn tests a belt-fed, wheeled-carriage Maxim with Joe Meaux of Aklys Defense from Aklys Defense.
Have you ever expanded a .22 or 6mm cartridge all the way up to .30-caliber? If so, you know this can be a difficult procedure that stresses the case necks and neck-shoulder junction. A significant neck-size expansion done in one big jump can increase run-out, cause doughnuts, or worse yet, even split the brass. Therefore you want to proceed in increments, increasing the neck diameter in stages. One smart way to do that is to use a Progressive Press. This article explains how…
The most successful short-range benchrest-for-score cartridge is the 30 BR. That cartridge, as well as 30 BR variants such as the 30 BRX, all start with the 6mmBR Norma parent cartridge, typically with Lapua 6mmBR brass. To get a nice 30 BR case you want to expand in stages, increasing the inside neck diameter incrementally from .243 to .308.
Darrell Jones of DJ’s Brass Service creates thousands of 30 BR cases each year. He has found a clever way to speed up the process — Darrell uses a Progressive Press. He runs his 6BR brass through four (4) separate Hornady neck-sizing dies with expander mandrels. First there is a .257 die, followed by .264 (6.5mm), .284 (7mm), and then .308. Then a fifth and final K&M die provides one last, slight expansion so the newly-fashioned 30 BR cases perfectly fit the arbor of Darrell’s neck-turning tool.
So to repeat, the case starts as .243 (6mm), then moves in up stages .257, .264, .284, and .308, with a final “finishing” step prior to neck-turning. You can see the expansion in this video, which starts with 6mmBR brass that was first hydro-formed to 6 BRX:
Watch 6mm Cases Expanded to 30-Caliber (6BRX to 30 BRX)
For this demo video, Darrell expands just one case at a time. However, he can also put multiple cases in the progressive — one per station. This takes a little more effort, Darrell says, but the results are still excellent. Darrell tells us: “I do put multiple cases in the progressive to save time. The results are the same — I just wanted to show a single-step process and how it reduces run-out by not stressing the shoulder with one big expansion from 6mm straight to 30 caliber. Doing the operation in multiple stages avoids binds and helps keep the shoulders concentric.”
This same multi-stage procedure can be use to expand other cartridge types. For example you could take .221 Fireball brass in stages up to .308 to create 300 Blackout brass.
Darrell uses caliber-specific, Hornady neck-sizing-only dies with elliptical expanders. Darrell tells us: “The Hornady elliptical expander has a reduced bearing surface that puts less strain on the brass when expanding the necks to the next size.” The fitting at the bottom of the die is the Lock-N-Load die bushing that allows fast die changes.
These particular cases used in the video were first hydro-formed to 6BRX then expanded to 30 BRX before neck turning. DJ’s Brass offers hydro-forming for many popular wildcat cartridges such as 6 PPC, 6mm Dasher, and .284 Shehane.
What is Parallax?
Parallax is the apparent movement of the scope’s reticle (cross-hairs) in relation to the target as the shooter moves his eye across the exit pupil of the riflescope. This is caused by the target and the reticle being located in different focal planes.
Why is it Important?
The greater the distance to the target and magnification of the optic, the greater the parallax error becomes. Especially at longer distances, significant sighting error can result if parallax is not removed.
How to Remove Parallax
This Nightforce Tech Tip video quickly shows how to remove parallax on your riflescope.
While keeping the rifle still and looking through the riflescope, a slight nod of the head up and down will quickly determine if parallax is present. To remove parallax, start with the adjustment mechanism on infinity and rotate until the reticle remains stationary in relation to the target regardless of head movement. If parallax has been eliminated, the reticle will remain stationary in relation to the target regardless of eye placement behind the optic.
Above is a 26-year-old hand-loaded .300 Winchester Magnum case that failed to fire. After the misfire, the shooter used an inertial (impact) bullet puller to pull the bullet. In the process the case-neck sheared off.
Here’s a cautionary tale from the Tactical Rifle Shooters Facebook group. This real-world example explains why you should be cautious of old ammunition. Here serious internal corrosion was discovered.
Old Ammunition — Why You Should Be Careful
Commentary byTactical Rifle Shooters
The subject often comes up as to whether it is safe to shoot old ammunition. Historically my answer has always been yes, since over the years I have shot military surplus ammo dating back to World War II (1939-1945) and never had a problem. With over 40 years in competitive shooting, I’ve also had boxes of factory ammo that were 30+ years old and all worked flawlessly.
But I had an interesting experience this week shooting some .300 Winchester Magnum (WinMag) that I had loaded for competition with Reloder 22 back in 1993. I was breaking in a new barrel so just shooting any old ammo that I had. Of the 20 rounds, 15 shot perfectly, three had a fraction of a second hang-fire, and two didn’t shoot at all.
SMART TIP: If you have old ammunition, pull one bullet to see what’s going on inside.
So I pulled the bullets using a hammer-type impact (inertial) bullet puller. What I found was verdigris-like corrosion inside the necks, with one neck completely separating. One reason for this could be that dissimilar metals (copper and brass) can set up a reaction resulting in corrosion. Like I said, this is the first time I’ve seen this, but will definitely be more aware when shooting old hand-loads in the future.
Above is one of the 26-year-old reloaded .300 WinMag cartridges which had failed to fire. To check the internal condition, the bullet was removed using an impact (inertial) bullet puller. Note the verdigris-like corrosion and crack in neck.
Here’s a close-up of the same .300 Winchester Magnum hand-load from 1993 showing serious corrosion inside the neck. (This was a fail-to-fire.) The powder was Alliant Reloder 22. If you have old ammo, it wouldn’t hurt to pull one bullet to see what’s going on inside.
Do you shoot long, pointy Hybrid Ogive bullets? If so, you may need to modify the Hornady L-N-L Bullet Comparator tool commonly used to measure the distance from bullet base to bullet ogive.
