Here is an article Glen Zediker wrote for the Midsouth Blog. In this article Glen gives important advice on selecting, handling, seating, and testing primers. The right primer choice can and will affect your load’s performance and accuracy. And proper primer handling is essential for safety.
by Glen Zediker
The primer is one component in the collection that might not get all the attention it warrants. That’s because it is the one thing, above all other components, that you don’t want to just swap and switch around. We’ve all heard cautions about testing new lots of every component, especially propellant, but primers not only change lot to lot, they vary greatly in their influence on any one load, brand to brand.
The difference in one brand to the next can equal a good deal more or less pressure, for instance. While there are “general” tendencies respecting the “power” of various-brand primers, always (always) reduce the load (propellant quantity) when switching primers.
This has become more of an issue over the past few years as we’ve faced component shortages. I can tell you without a doubt that going from a WW to a CCI, or from a Remington to a Federal, can have a major influence on a load. I establish that from chronograph readings. No doubt, it’s best to have a good supply of one primer brand and lot that produces good results, and when that’s not possible, it’s a hard sell to convince someone to stop loading ammo and get back to testing. But. It is important. I can tell you that from (bad) experience. How I, and we all, learn most things…
When I switch primers, whether as a test or a necessity, I reduce my load ONE FULL GRAIN. There can be that much effect.
The Elements of a Primer
A primer is made up of a brass cup filled with explosive compound (lead styphate). Lead styphate detonates on impact. Primers don’t burn – they explode! In the manufacturing process, this compound starts as a liquid. After it’s laid into the cup, and while it’s still wet, a triangular piece or metal (the “anvil”) is set in. When the cup surface is struck by the firing pin, the center collapses, squeezing the explosive compound between the interior of the cup and the anvil. That ignites the compound and sends a flame through the case flash hole, which in turn lights up the propellant.
Primers Can be Dangerous — Particularly When Stacked
Don’t underestimate that. I’ve had one experience that fortunately only created a huge start, but I know others who have had bigger more startling mishaps. These (almost always) come from primer reservoirs, such fill-tubes. Pay close attention when charging up a tube and make sure all the primers are facing the right way, and that you’re not trying to put in “one more” when it’s full! That’s when “it” usually happens. What will happen, by the way, is akin to a small grenade. Static electricity has also been blamed, so keep that in mind.
Sizes and Types of Primers
Primers come in two sizes and four types. “Large” and “small”: for example, .223 Rem. takes small, .308 Win. takes large. Then there are pistol and rifle in each size.
Rifle primers and pistol primers are not the same, even though they share common diameters! Rifle primers [normally] have a tougher cup, and, usually, a hotter flash. Never swap rifle for pistol. Now, some practical-style competitive pistol shooters using their very high-pressure loads (like .38 Super Comp) sometimes substitute rifle primers because they’ll “handle” more pressure, but they’ve also tricked up striker power. That’s a specialized need.
Further, some primer brands are available with a “magnum” option. Some aren’t. My experience has been that depends on the “level” of their standard primer. A magnum primer, as you might guess, has a more intense, stouter flash that travels more “deeply” to ignite the larger and more dense powder column. It reaches further, faster.
Flash Consistency Counts Flash Consistency is very important, shot to shot. The consistency of every component is important: bullet weights, diameters, case wall thicknesses, and all the way down the list. We’re hoping to get more consistent behavior from a “match” or “benchrest” primer, and we’re paying more for it. I can tell you that some brands that aren’t touted as “match” are already consistent. That all comes from experience: try different primers, just respect the need to initially reduce the load for each test. I can also tell you that my notes tell me that the primer has a whopping lot to do with how high or low my velocity deviations plot out.
Primer Dimensional Differences and Primer Tools
One last thing — there are small variations in primer dimensions (heights, diameters) among various brands. These variations are not influential to performance. However — small diameter variations can influence feeding through priming tools. This can be a hitch especially in some progressive loading machines. Manufacturers usually offer insight (aka: “warnings”) as to which are or aren’t compatible, so find out.
This article is adapted from Glen’s books, Handloading For Competition and Top-Grade Ammo, available at Midsouth HERE. Learn more about Glen’s books at ZedikerPublishing.com.
Readers often ask us: “Is there an inexpensive way I can get started in position shooting?” The answer is “yes” — across the country CMP-affiliated clubs host Rimfire Sporter matches. You can use a wide variety of .22 LR rimfire rifles — manual actions (such as a Winchester model 52) or semi-automatics (such as a Ruger 10/22). There are prone, sitting/kneeling, and standing stages. CMP rules provide separate classifications for scoped rifles, open-sighted rifles, and aperature-sighted rifles. The matches are fun, the ammo is inexpensive, and everyone has a good time while improving their marksmanship.
The rapid-fire sitting or kneeling stage of a CMP-sanctioned .22 Sporter Match consists of two, 5-shot strings. A manually-operated or semi-automatic rifle may be used for this match.
The video shows the sitting/kneeling rapid-fire stage of a Rimfire Sporter match.
Our friend Dennis Santiago helps run CMP Rimfire Sporter Matches in Southern California. Dennis observes: “You want something challenging? Well that X-Ring 50 yards away is the diameter of a 50 cent piece, and there are people out there that can womp that thing with iron sights.”
Dennis notes: “There are six (6) stages of fire on a tough little target. Notice the rifles that can be used run the gamut from pump and bolt actions to variations on the semi-auto theme. All still require a good eye and a steady hold to earn one’s bragging rights for the day. A match takes about an hour and a half per relay. The slowest part of the match is initial sighting in. It’ll take longer than the allocated 5 minutes for the typical first timer coming to a club match.”
At Dennis’s Burbank Rifle & Revolver Club (BRRC), procedures are modified a little bit: “What we typically do at BRRC is run two relays. Experienced competitors shoot per the full rulebook. New shooters are afforded a bit more relaxed environment to make the experience more fun and inviting. We do the same thing in our M-1 Garand Clinic/Match series.”
Rimfire Sporter Match Basics
The CMP Rimfire Sporter Rifle Match is an inexpensive, fun-oriented competition using .22 caliber sporter rifles (plinking and small game rifles) commonly owned by most gun enthusiasts. To compete, all you need is a basic rifle, safety gear, and ammunition. No fancy, high-dollar rifles are required.
The event is shot with standard sporter-type, rimfire rifles weighing no more than 7 ½ lbs, with sights and sling. Rifles may be manually-operated or semi-automatic. Shooters with manually-operated actions are given extra time in the rapid-fire stage to compensate for the difference. (See Video).
There are three classes of competition — the standard “O Class” for open-sighted rifles, “T-Class” for telescope-sighted and rear aperture-sighted rifles and “Tactical Rimfire” class, which is a .22 caliber A4 or AR15 style rifle. Firing for all classes is done at 50 and 25 yards on a target with a 1.78″ ten-ring and an 18″ outer one-ring. Even new shooters can get hits on this target, but it’s still tough enough that no one yet has fired a perfect 600×600 score.
The Civilian Marksmanship Program (CMP) has a CMP Guide to Rimfire Sporter Shooting. This FREE, 50-page digital publication covers equipment, positions, course of fire, rules, scoring and much more. You’ll find helpful “how-to” sections on aiming, sight picture, hold control, and trigger control. Reading these instructional sections can benefit any prone or three-position competitive shooter.
Here’s a killer deal on a Front Focal Plane (FFP) optic good for PRS competition and tactical applications. The Vortex Viper PST 4-16x50mm scope features 0.1 Milrad clicks with an EBR-1 illuminated reticle with Mil-based hash marks. There are 21 Mils of Elevation amd Windage. The scope is 13.7 inches long, has a 30mm main tube, and weighs 22 ounces (without rings).
Not that long ago, this scope sold for around $900.00. Now you can get the Vortex Viper PST 4-16x50mm for just $599.99, a $300.00 savings. That’s a steal for a PRS-ready FFP comp scope with a proven track record and rock-solid Vortex warranty.
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The First Annual Precision Rifle EXPO takes place this weekend, September 15-16, 2018, at the Arena Training Facility in Blakely, Georgia. The event lets precision rifle enthusiasts connect with top manufacturers, rifle instructors, and leading tactical competitors. REGISTER HERE for $25.
Precision Rifle EXPO attendees will be able to meet industry experts, get hands-on product experience, and attend a variety of shooting seminars — all for a modest $25 entry fee. Seminars will include: Precision Hand-loading, Wind Reading, Position Building, Competition Preparedness, Long Range Precision Shooting Intro, and the Fundamentals of Marksmanship. Live-fire activities will include shooting with suppressors, precision rimfire, 1000-yard targets, and one-mile target challenge.
All Types of Products Will Be on Display
The Precision Rifle EXPO offers a unique opportunity to check out the latest products from dozens of top companies all in one place. At least 42 companies will be at the EXPO, displaying complete rifles, actions, triggers, stocks, optics, reloading gear, ammo, electronics, rangefinders, chronographs, ear protection, support bags, bipods, tripods, and all manner of accessories.
Precision Rifle EXPO 2018 Exhibitor List
Accurate Ordnance
Alpha Munitions
Atlas (B&T Industries)
Area 419
Armageddon Gear
Barrett
Berger
Bushnell
Cole-TAC
Curtis Custom
Defiance
Federal
GA Precision
Hunts Long Range
Kahles
Kelbly’s
Kestrel
Knights Armament
Lapua
Magnetospeed
Manners Stocks
MasterPiece Arms
McMillan Stocks
McWhorter Rifles
MDT Chassis
Nightforce
Proof Research Barrels
RCBS
Really Right Stuff
Rugged Suppressors
Schmidt & Bender
Sierra
SK Ammo
Stillers Precision
Swarovski
Timney
Trigger Tech
Vortex
Vudoo Rifles
Warnes Scope Mounts
West Texas Ordnance
Whidden Gun Works
Arena Training Facility — 2300 Acres
The 2300-acre Arena Training Facility is a premier shooting facility with multiple shooting ranges from 50m to 2100m. Arena’s 1000-yard covered Known Distance range offers multiple benches, steel and paper targets out to 1000 yards. On Arena’s UKD (unknown distance) range shooters can engage steel out to 2300 yards. This 2100m UKD range boasts a 3-Story Shooting Tower, Air-Conditioned Shoot House, and multiple Positional Challenges.
Jerry Miculek — that name is synonymous with revolvers. But Jerry is also one heck of a rifleman, as he demonstrates in this video.
Three Shots Standing at 400 Yards in 4.37 Seconds
For those of us who usually shoot from the bench, hitting a silhouette target at 400 yards from an standing position (unsupported) would be a big challenge. Here Jerry Miculek makes it look easy.
In this video, Jerry hits not one but THREE c-zone targets at 400 yards. And — get this — he does this in under 4.4 seconds starting with his rifle laying on a support. It took Jerry two tries (on his first run he hit 2 out of 3 in 4.65 seconds). On the second attempt (see video starting at 2:19), it takes Jerry just 4.37 seconds to shoulder his rifle, aim, and fire three shots, each hitting a separate steel target. Wow. That’s truly remarkable. Most of us would need ten seconds (or more) just to get the scope on the first target.
Trust us folks, this ain’t easy. It takes remarkable marksmanship skills to shoot with this kind of precision at this kind of pace. As Jerry would say himself, “Not bad for an old guy who needs glasses”.
Anschutz .22 LR rifle set up for F-Class competition. Photo courtesy Sportschieben Blog.
Here’s a new discipline we think should become very popular — Smallbore F-Class with .22 LR rimfire rifles. Rest-supported prone rimfire matches have been held around the world for quite some time, but only a few years ago was the discipline officially codified in the NRA Smallbore Rulebook. And the first-ever Smallbore F-Class National Championship was held this past July in conjunction with the Smallbore Nationals at Camp Wa-Ke’-De in Bristol, Indiana. The Nationals involved multiple days of prone shooting at 50 meters and 100 yards.*
Jim Murphy, a respected centerfire shooter and coach, became America’s very first Smallbore F-Class National Champion, shooting an impressive 2374-146X score. Fourteen points behind, but with the same X-Count, was runner-up David Pessall (2360-146X). Jess Huehn finished third with 2358-137X.
Competitors could either shoot off a bipod F-TR style, or use a front rest. In this photo from the inaugural NRA National Championship you can see a shooter with SEB Coaxial Rest at top, with a competitor using a low-profile bipod at bottom. Note the extended handle used to adjust bipod elevation. This is not a coaxial joystick, but rather a long handle attached to the mariner wheel.
Smallbore F-Class — The Future Looks Bright
With the high cost of centerfire ammunition, and the limited number of 1000-yard (or even 600-yard) ranges, we can envision that Rimfire F-Class will become a popular event at ranges across the country. Clubs don’t even need benches — just a 100-yard target bay and flat ground for the shooters. You can start with an inexpensive rimfire rig and Harris bipod. Then work up from there. Here is a custom rimfire F-TR style rig that belongs to F-Class ace and past centerfire F-TR National Champion James Crofts.
Smallbore F-Class Course of Fire
The Smallbore F-Class Nationals was completed on paper targets at 50 yards and 100 yards. According to Shooting Sports USA: “The tournament ran during the any sight and metric phases of the 2018 NRA National Smallbore Rifle Championships, featuring a daily course of fire which mirrored the sling shooters, 40 shots at 50 meters on the A-50 target, a Metric Dewar, followed by 40 shots at 100 yards on the A-33 target. Although the international targets were shot throughout, the first two days were titled ‘conventional’ and the last two ‘metric’.”
The specifics of the match such as rifle requirements, rests, and sights may be found in the Provisional Smallbore Rifle F-Class Rules (Section 23), found on page 65 of the current NRA Smallbore Rifle rulebook. Any rules not covered in Section 23 will [reference] the normal rules of Sections 1 through 22.
* All ‘short range’ F-Class was shot at 50 meters on the A-50, the 50 meter International Shooting Sports Federation (ISSF) target. All ‘long range’ stages were shot at 100 yards using the NRA A-33 target, the ISSF 300-meter target reduced to 100 yards.
IBS 100/200 Yard Score Nationals Will Be Rescheduled due to Impending Hurricane
Due to the impending landfall of Hurricane Florence, the IBS 100/200 yard Score Nationals event has been rescheduled from this coming weekend (September 15-16) to the weekend of October 27-28, 2018, at the same location — the Ashe County Wildlife Club (ACWLC), in Laurel Springs, North Carolina.
The same Ashe County club hosted the 200/300 Score Nationals in 2015, and it was a huge success. Given the popularity of this fine North Carolina shooting facility, we expect the turn-out in October (as rescheduled) will be high. CLICK HERE for Forum thread.
The ACWLC range is located in the mountainous northwest point of the state with Virginia to the north and Tennessee to the west. The Club also hosted the 100 and 200 Yard National Championship in 2014, utilizing its 30 benches protected by an overhang.
Ashe County Wildlife Club maintains a website, www.acwlc.org and a public Facebook page. The Club hosts rifle, pistol, and shotgun sports (skeet, trap, sporting clays) events at its range facility located about 15 miles east of West Jefferson at 3220 Big Peek Creek Road, Laurel Springs, NC (turn north off NC Highway 88). Visit www.acwlc.org to learn more about the club or obtain Membership applications.
We first featured this story in 2010, but the results of this rimfire ammo test have been of such widespread interest that we try to bring the test to readers’ attention every year.
In 2010, the staff of AccurateReloading.com Forum completed a massive .22LR Rimfire Ammunition Testing Project. Some 55 different types of ammo were tested, using a highly-accurate Swiss-made Bleiker rifle, with a 2-stage trigger. All ammo varieties were tested at 50 yards, 75 yards, and 100 yards, shooting five, 5-shot groups at each distance. Though these tests were completed some time ago, many readers have requested a “reprint” of the ammo rankings, so we’ve republished this data below.
The results are fascinating to say the least (and perhaps eye-opening). The tester observed: “I got some amazing groups, and some which are, frankly, absurdly bad! This has re-enforced what I had experienced with 22 ammo in the past — that is being consistently inconsistent.”
While we strongly caution that .22LR rimfire ammo may work well in one gun and not another, and ammo performance can be improved through the use of barrel tuners, the AccurateReloading.com research provides invaluable guidance for smallbore shooters. Overall, the testers burned through over 4,000 rounds of ammo, and you can see the actual test targets online. To read all the test reports, and view target photos visit AccurateReloading.com.
0.162 Eley Tenex Ultimate EPS
0.164 Lapua Midas Plus
0.177 Lapua Polar Biathlon
0.187 Eley Match EPS
0.193 Eley Match
0.203 Lapua Midas M
0.215 Lapua Center X
0.216 Western Value Pack
0.229 Lapua Signum
0.241 Lapua Master L
0.243 Eley Pistol Match
0.256 Olin Ball
0.256 Akah X-Zone
0.261 Lapua Midas L
0.261 Lapua Master M
0.263 Eley Tenex Semi Auto
0.270 Lapua Super Club
0.272 Eley Tenex
0.303 Lapua Standard Plus
0.312 CCI Standard Velocity
0.319 RWS R 50
0.319 Eley Standard
0.328 SK High Velocity
0.339 Eley Club Xtra
0.340 Winchester T22
0.356 Federal Champion
0.362 Eley Subsonic HP
0.371 CCI Mini Mag
0.376 Federal American Eagle
0.377 Norinco Target
0.380 Sellier & Bellot Club
0.384 Eley Club
0.387 Eley Sport
0.388 Totem
0.392 Swartklip Match Trainer
0.398 Federal Gold Medal
0.403 Swartklip HV
0.409 Eley Match Xtra Plus
0.424 Sellier & Bellot Std
0.443 Remington Target
0.461 Lapua Crow HP
0.475 Eley Silhouex
0.479 Magtech
0.498 Eley High Velocity
0.513 Winchester Super X
0.516 Kassnar Concorde
0.539 CCI Blazer
0.560 Winchester Supreme Pistol
0.576 Norinco Pistol Revolver
0.593 SK Standard
0.611 Sellier And Bellot HP
0.626 SK Standard HP
0.686 Logo HV
0.956 Pobjeda Target
0.274 Lapua Center X
0.283 Lapua Standard Plus
0.295 Eley Tenex Ultimate EPS
0.307 Lapua Midas M
0.329 Lapua Master M
0.346 Eley Match
0.373 Lapua Polar Biathlon
0.399 RWS R 50
0.432 Lapua Midas L
0.448 Eley Tenex Semi Auto
0.467 Eley Match EPS
0.474 Lapua master L
0.491 Eley Match Xtra Plus
0.494 CCI Standard
0.496 Eley Subsonic HP
0.507 Eley Sport
0.512 Federal American Eagle
0.513 SK High Velocity
0.514 Eley Standard
0.516 Eley Tenex
0.516 Lapua Crow HP
0.532 Western Value Pack
0.533 Fed. Champion Target
0.535 Lapua Midas Plus
0.564 Akah X Zone
0.566 Olin Ball
0.573 Eley Club Xtra
0.616 Lapua Signum
0.631 Winchester T22
0.639 Swartklip HV HP
0.641 Eley Club
0.642 Eley Silhouex
0.647 CCI Mini Mag
0.679 Eley Pistol Match
0.682 Swartklip Match Trainer
0.690 Federal Gold Medal
0.692 Remington HV
0.703 Lapua Super Club
0.720 Winchester Super X
0.738 Eley High Velocity
0.759 Kassnar Concorde
0.765 Sellier And Bellot Club
0.770 Winch. Supreme Pistol
0.770 Norinco target
0.775 CCI Blazer
0.802 Norinco Pistol Revolver
0.841 LVE Logo HV
0.855 Sellier & Bellot Std
0.871 Magtech
0.923 Sellier & Bellot HP
0.934 SK Standard HP
1.017 Remington Target
1.257 Totem Standard
1.442 SK Standard
1.578 Pobjeda target
0.455 Eley Match
0.510 Lapua Midas Plus
0.549 Lapua Midas M
0.611 Lapua Polar Biathlon
0.611 Eley Tenex Ultimate EPS
0.619 Eley Match EPS
0.622 Eley Club
0.630 Lapua Center X
0.631 RWS R50
0.679 Eley Tenex Semi Auto
0.694 Lapua Midas L
0.729 Eley Tenex
0.739 Lapua Master L
0.753 Lapua Super Club
0.785 Lapua Master M
0.831 Eley Sport
0.851 Eley Match Xtra
0.859 Lapua Standard Plus
0.867 Akah X-Zone
0.877 Eley Pistol Match
0.907 Norinco Target
0.924 Eley Silhouex
0.939 CCI Standard
0.952 Eley Subsonic HP
0.963 Magtech
0.970 Olin Ball
0.978 Kassnar Concorde
0.995 Eley Club Xtra
1.009 Western Value Pack
1.032 Federal Champion
1.087 Norinco Pistol Revolver
1.100 CCI Mini Mag
1.112 Lapua Crow HP
1.143 Winchester T22
1.142 Federal Gold Medal
1.144 federal American Eagle
1.156 Swartklip Hollo Point
1.165 Lapua Signum
1.170 Swartklip Match Trainer
1.175 Fed. Champion Value Pk
1.182 SK high Velocity
1.201 Totem
1.224 Winchester Super X
1.358 Eley Standard
1.367 Remington High Velocity
1.375 CCI Blazer
1.414 Eley High Velocity
1.450 Remington Target
1.504 LVE Logo
1.813 SK Standard
1.879 S&B Club
1.947 S&B Hollow Point
2.073 SK Standard HP
2.221 S&B Standard
2.266 Pobjeda Target
It’s hunting season in many areas of the country already. If you’re planning a fall hunt you want to do your homework — make sure your gear is checked out, your rifle zeroed, and your hunting grounds plotted. You’ll want to sight in your rifle, get the right clothing, make sure you have your hunting license, deer tags, and other needed paperwork.
Cabela’s has a ton of helpful information for hunters on its Deer Nation website. You’ll find numerous videos as well as articles from expert guides and experienced hunters.
This episode of Cabela’s Whitetail Season highlights ground hunting. While some hunters prefer a stand, the cover provided by the background and tall grasses can help with your stalks.
In this video, Bill Winke, host of Midwest Whitetail, shows how he hunts over small food plots.
Cabela’s Deer Nation portal offers over 100 informative articles for hunters. Here are six of our favorite features:
No Carry-Guard Convention this weekend boys and girls — there’s a Hurricane coming…
NRA Carry Guard Expo in Richmond CANCELLED
Ahead of Forecasted Landfall of Hurricane Florence
RICHMOND, Va. – The National Rifle Association (NRA) has cancelled the second annual NRA Carry Guard Expo, which was scheduled for Sept. 14-16, 2018 at the Greater Richmond Convention Center in Richmond, Virginia, due to the impending threat of severe weather associated with Hurricane Florence. The hurricane is now predicted to make landfall on the North Carolina coast late Thursday.
In a press release, the NRA stated:
“The cancellation was made in the interest of public safety due to the forecasted arrival of Category 4 Hurricane Florence in the mid-Atlantic region this forthcoming weekend, and the resulting declaration of a State of Emergency by the Governor of Virginia. This decision required careful deliberation and concern for the safety of attendees, exhibitors and others involved with the event.
Customers who purchased event tickets or tickets to paid workshops will receive refunds for their purchases.
Despite this major weather event being beyond human control, the NRA regrets any inconvenience caused by this decision. We look forward to welcoming guests and exhibitors next year to the 2019 NRA Carry Guard Expo, scheduled for Sept. 6-8, 2019, in Fort Worth, Texas.”
Refund Process — How It Will Work
Regarding refunds, the Carry Guard Expo website states: “If you bought tickets, you will receive a full refund on any show admission, workshop(s), and Concealed Carry Fashion Show tickets purchased, as well as the ticket convenience fee (if applicable). NOTE: There is no action required on your part. Refunds will automatically be applied to the credit card used by the customer at the time of purchase. Please allow up to 5 business days for processing.”
Flash Consistency is very important, shot to shot. The consistency of every component is important: bullet weights, diameters, case wall thicknesses, and all the way down the list. We’re hoping to get more consistent behavior from a “match” or “benchrest” primer, and we’re paying more for it. I can tell you that some brands that aren’t touted as “match” are already consistent. That all comes from experience: try different primers, just respect the need to initially reduce the load for each test. I can also tell you that my notes tell me that the primer has a whopping lot to do with how high or low my velocity deviations plot out.
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In 2010, the staff of 
