a custom Remington 700 we have built ourselves. What is the pressure of a .44mag? Both are roughly the same diameter. Lots of people had good luck with them. Lauries findings will doubtless influence many hand-loaders who hope to produce more consistent ammunition, or achieve better accuracy. In firearms and artillery, the primer (/ p r a m r /) is the chemical and/or device responsible for initiating the propellant combustion that will push the projectiles out of the gun barrel.. Laurie Simply outstanding work and write-up as I always expect when you are involved! At .020' thick cup metal, these primers are minimal, at best, for light .223 Remington loads. Thanks again for the excellent write-up and work! Store For Availability. The following are with 80 grains of VVN 165, same bullet _gaq.push(['_setDomainName', '.accurateshooter.com']); Great info. It has always been my impression that low ES/SD correspond to optimized combustion; that is to say when the primer, cartridge volume (pressure cell), powder charge, were all optimized to give optimal combustion for a given bullet weight. Buy Reloading > Components > Primers - Gun City are the leading firearms experts in New Zealand. In this case, it was a Federal large rifle magnum. When I use the press the primers are seated harder.In your opinion would there be a difference in ES because of the seating mechanism? The generally accepted difference is heat is 6 percent, up and down from the middle ground CCI200, although that is subject to actual scientific data, which I . Thank you, This extensive test is an important contribution to the knowledge base of precision shooting. of those horrible looking plastic stocks. Large Rifle Primers; Shotshell Primers; Best Selling In PRIMERS. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. 0000001157 00000 n I would like to state In the recent past I had been using BR-4's but have found the extra flash from #41's to give me slightly better groups at 1k. And real standardization. His subsequent usage of Winchester Large Rifle standard lit all his powder. - All the large rifle primers measured have the same thickness. In bolt action rifles, not semis. 0000027119 00000 n test, using all the different primers that we have here. average of all the 4 groups above it. The Effects Of The pointer remains at the highest point of the shot. CCI "APS" Large Rifle Primers Strip . I took four large pistol primers (CCI 300's), four large rifle primers (CCI 200's) and four large rifle bench rest primers (CCI BR-2's) and measured the width and depth of all three primer types. Depending on your needs and expectations, they may be worth the extra cost. Match event calendar and rifle competition accuracy training tips. (function() { I am using RCBS bench priming tool model 9460 link here: Strange that Lyman is a #2 and RCBS is #3 shell holder. 2.7-3.5 .2406, 17 Federal 150 LP 3.11 Posted: 5/29/2018 9:45:54 PM EST. This is where the similarity ends. As an aside, a couple of years ago, shortmags.org published a list of primers from hottest to coolest. 0000015039 00000 n The first "magnum" primer, the Federal 215 was designed for this very purpose. The following are the results of the 25-06 Remington, shot The first bit of useful trivia is that even though Small Rifle and Small Pistol primer pockets share the same depth specification, Large Rifle and Large Pistol primers do not. Take them with a grain of salt and as a guide only. $12.99. We were using standard large rifle primers for all cases up Another thing that is not in this test, but I have noted, is using a newsprint wad over the primer. It has a Hart barrel #5 and a You may not reproduce original text or photos without advanced permission in writing. CCI No. brass. 0000076644 00000 n When you purchase through links on our site, we may earn an affiliate commission, which supports our community. And get this, among ALL the primers tested, Rem 9M Magnum primers produced the lowest velocity, while Rem 9 LR (non-magnum) primers yielded the highest velocity. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. I made one up for rifles cartridges once, for my own use but the method I used isn't very scientific so it might not be valid. Lee Reloading Auto-Prime Hand Priming Tool. You must log in or register to reply here. Five round with the RWS primers hang fired, including 2 of ALL Bulletin content is copyrighted, 2023 AccurateShooter.com. 5.2-6.5 .4437, 3 CCI 250 LRM 5.66 0000027667 00000 n A final part of the test took a small number of the best performers and ran them in my primary 155.5gn Berger BT Fullbore / IMR-8208 XBR load without the MagnetoSpeed on to see what they did to groups without a load-retune against my usual CCI-BR4 load and to see if they would cope OK with 60,000 psi pressure. All Primers have a different Brisance. Thanks for the insight Rocky. 0000005537 00000 n *Must have a registered ARFCOM account to win. 40,5. Standard deviation . And standard primers. coated. 0000003606 00000 n I think the BR4 is milder than the CCI 400 primers. in a Ruger Target model rifle. 10. Fiocchi 616 Shotshell Primers #209 | 1,000 Count $ 89.99. 4 Comments. This is a retype after losing the original web page. 0000004308 00000 n _gaq.push(['_setAccount', 'UA-6323545-2']); Your first post mentioned measuring the depth of the primers, and to my way of looking at the world, that . Up to 6,000 psi difference just by changing primer brands. On the one hand, it's a shame that we don't have better information about primers. It is obvious that the thicker cups will withstand more pressure. A few Read more; CCI #34 7.62mm Military Primers. Another unexpected finding was that with all of the 17-round strings halted for 15 or more minutes for barrel cooling between shots 10 and 11, in over half of the strings shot 11 produced a (low) MV that was out of the range of the others and had to be discounted. we will try it to see how it performs. 3 VihtaVuori N310 38 IMR, Co Hi-Skor 800-X. 091014. According to the same Internet sources, the Federal Gold Match Large Rifle Magnum primers (215M) are at the top of the list in terms of heat. V361617. mounts. I learned Cci 400 and cci 550 are the same! $7.99. On the other hand, if some of the primers that gave poorer results in your testing with a specific .308 load gave much better results with a different cartridge/powder/bullet weight, it would be much more difficult to make any general predictions that might allow a reloader to keep a stock of only two or three types on hand, one of which would be likely to give satisfactory results over a wide range of cartridges and powders. These primers are designed for everything from small-caliber rifles and handguns to the large-caliber rifles . Makes me think about some BR4 primers for my 6.5x47L over the #400. Reading primers tells you a lot about how hard the primer cups are, what your headspace is like, how big your firing pin hole is, and how sharp your firing pin is, but it doesn't tell much about peak pressure. There are primer Brisance test that rate primers by there brisance (Heat) but as far as I know no one has checked them for heat sensitivity. Thanks! The LRP is at least .008 taller than the LPP and has a significantly thicker cup (not shown on chart). 0000028191 00000 n Seems they give me good results across the board. I have not measures themperhaps your not seating them fully? 200 Large Rifle Primers - 100 Count. But be sure to remove it before you pop a primer, thermometers propelled by the GI's wolf whistles and shattering on the walls of the ward. #4. LRM = Large Rifle Mag . Very interesting. At minimum load a handful of reduced loads with a new primer. The barrel was 24 inches long. Come join the discussion about performance, gunsmithing, troubleshooting, reviews, accessories, classifieds, and more! and brass. the results of each group so you can compare that with others, as well as the group Dev, 1 Fed Match GM215M 6.12 5.23-6.8 .351, 2 Federal 215 LRM 5.69 Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. I guess what my question boils down to is whether you think the range of primer performance you observed in your test here would carry over to other cartridges and powder selections. Fishing Bait Chart; Hunting Camo Patterns; Guns. The pressure used to seat primers, pocket uniforming, flash hole uniforming, and seating depth are all factors. Primer with Biggest Group Size: CBC Magtech 9 (0.7 average, three 5-shot groups). http://forums.accuratereloading.com/eve/forums/a/tpc/f/2511043/m/77010865, http://www.riflemagazine.com/magazine/article.cfm?tocid=654&id=50, http://www.accuratereloading.com/primer.html. This charge fills the case to about half The standard primer sizes for metallic centerfire (rifle and pistol) cartridges are small (.175" diameter) and large (.210" diameter). You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers. Federal Large Rifle Magnum #215M Gold Medal Match Primers | 1,000 Count. The following loads were shot in a Sako TRG-41 target Read more; CCI Aps BR4 Small Rifle Benchrest (1000) $ 135.00. The new Russian might make it easier to compare the velocity at normal temperature and cold Remington says the compound is the same as the 6, but with a thicker cup. 5 Alliant e3 40 Ramshot True Blue. The brass colored wolf primers always fire fine in my bolt guns (and in my ar15 as well). In other words, the steps were small indeed. var _gaq = _gaq || []; One of the frozen rounds with the CCI BR 2 hang fired. - Cases that utilize small rifle primers and operate at higher pressures (55,000 psi) should use CCI 450, CCI BR4, Fed 205 and Rem 7 1/2. To date, the best I approach have seen is that it is wise to have several primers that cover a range of brisance and simply test them empirically to find the one that works best with a particular load. Testing 16 primer types was a huge task we commend Laurie for his hard work and thoroughness. The first "magnum" primer, the Federal 215 was designed for this very purpose. . In part 1 of my Large Rifle Comparison I take a look at each manufacturer's particular primer and give a quick overview. No issues with the copper cup Wolf. The US industry standards for Boxer primers are: Small pistol and rifle diameter: .175" Small pistol and rifle height: .110" Large pistol and rifle diameter: .210" Large pistol height: .110" Large rifle height: .120" At the factory, primer cups are cut out of a sheet of material much like a giant cookie cutter where they look much like a small . Primers are tested for reliability from -20 degrees F to +150 degrees F. Or standard when choosing a primer the. [ARCHIVED THREAD] - Primer burn rate(?) Small pistol primers - which are about the same size as small rifle primers but designed specifically for handguns. I thought this The biggest surprise to me came from an elderly (at least 10 years) lot of Czech Sellier & Bellot standard caps with an ES of 12 and SD of 3.1 fps, way below those of the nearest competitor. The Fora platform includes forum software by XenForo. Good read! 22661. really see any indication from the above test to change that. Match King bullet, molly coated. The testing was apparently done with a homemade ballistic pendulum, which left a lot to be desired. Buy in store-Limit 2. It was also years ago and things may have changed. size, one of which would be a ball powder. The following are with 75 grains of Reloader 19. We know that major seating faults definitely have an effect, but do minor variations in seating tension too?
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