GentlemanJim Posted October 19, 2007 Share Posted October 19, 2007 I have lots of large rifle primers...and NO large pistol primers. At this time primers are hard to find ...and I suddenly have a great need to load lots of 45acp Can I use the rifle primers in 45 or will I create some problem I am not aware of. I use small rifle primers in pistol with no ill effects. Thanks for any input!! Jim Link to comment Share on other sites More sharing options...
mwx40x40 Posted October 19, 2007 Share Posted October 19, 2007 Small Rifle and Small Pistol are usually exact same size. Large Rifle sometimes a little taller than Large Pistol and need deeper primer pocket . I always been told not to use them. I am sure some more knowledgeable than I ,will chime in. Link to comment Share on other sites More sharing options...
Chris Keen Posted October 19, 2007 Share Posted October 19, 2007 It works ok in open guns with +P brass ...... .45 brass is pretty strong, and generally a low pressure load anyways. Link to comment Share on other sites More sharing options...
Guy Neill Posted October 19, 2007 Share Posted October 19, 2007 SAAMI defines large rifle primers with a height of 0.123" to 0.133". Large pistol primers are defined as 0.115" to 0.125". The large rifle primer also has a bit more priming compound. Overall, best to stay with large pistol primers where called for. Unless you deepen the primer pockets you risk a slamfire (autos) or binding the cylinder (revolvers). Cases for revolvers that have had the primer pocket deepened will likely then not work with pistol primers because of the deepened primer pocket. Guy Link to comment Share on other sites More sharing options...
AlamoShooter Posted October 19, 2007 Share Posted October 19, 2007 The most curent info I have is NO1 don't do it ! large are rifle are not the same as the small. In the 45 you are allready useing fast powder the Hot large primer will give you a Preshur Spike that make an open gun seam tame. Link to comment Share on other sites More sharing options...
GentlemanJim Posted October 19, 2007 Author Share Posted October 19, 2007 Well I popped a primer out of an old case...and it seems it is about .011 shorter than a rifle primer the advice is correct ...its a no no I guess I will have to find some pistol primers . need to shoot a few k to bone up ...I cant let the Zman beat me like a red haired stepchild Thanks guys! Jim Link to comment Share on other sites More sharing options...
zhunter Posted October 19, 2007 Share Posted October 19, 2007 Well I popped a primer out of an old case...and it seems it is about .011 shorter than a rifle primer the advice is correct ...its a no no I guess I will have to find some pistol primers . need to shoot a few k to bone up ...I cant let the Zman beat me like a red haired stepchild Thanks guys! Jim Geez, LAST NIGHT we agree to meet at Dawn in January, and youa re already gettin' ready! Get a life, and give me some slack, I am werkin' and can't practice Link to comment Share on other sites More sharing options...
Dan Sierpina Posted October 19, 2007 Share Posted October 19, 2007 Well I popped a primer out of an old case...and it seems it is about .011 shorter than a rifle primer the advice is correct ...its a no no I guess I will have to find some pistol primers . need to shoot a few k to bone up ...I cant let the Zman beat me like a red haired stepchild Thanks guys! Jim Geez, LAST NIGHT we agree to meet at Dawn in January, and youa re already gettin' ready! Get a life, and give me some slack, I am werkin' and can't practice You call what you do WERK?????????? Jim needs to practice, being a Senior division shooter that shoots an open gun. He needs to find what glasses will make that bumpy thing on the front of the gun somewhat in focus. Link to comment Share on other sites More sharing options...
dajarrel Posted October 19, 2007 Share Posted October 19, 2007 What bumpy thing? dj Link to comment Share on other sites More sharing options...
b.s._nm Posted October 23, 2007 Share Posted October 23, 2007 I have lots of large rifle primers...and NO large pistol primers.At this time primers are hard to find ...and I suddenly have a great need to load lots of 45acp Can I use the rifle primers in 45 or will I create some problem I am not aware of. I use small rifle primers in pistol with no ill effects. Thanks for any input!! Jim MY understanding is that all rifle primers have a heavier or thicker shell to withstand the heavier strike of a rifle firing pin. A friend had some rounds loaded with rifle primers at a match afew months back. shot 1 stage OK and then started having no-fires with a good firing pin strike. Stripped the pistol down and checked things. found nothing, changed to ammo with pistol primmers and had no further trouble. Save em for rifle rounds if you want reliability! Be Safe B.scrib_nm Link to comment Share on other sites More sharing options...
b.s._nm Posted October 23, 2007 Share Posted October 23, 2007 (edited) I have lots of large rifle primers...and NO large pistol primers.At this time primers are hard to find ...and I suddenly have a great need to load lots of 45acp Can I use the rifle primers in 45 or will I create some problem I am not aware of. I use small rifle primers in pistol with no ill effects. Thanks for any input!! Jim Don't know how to cancel this duplicate post. Sorry. HELP!!!!!!! Edited October 23, 2007 by b.s._nm Link to comment Share on other sites More sharing options...
GentlemanJim Posted October 23, 2007 Author Share Posted October 23, 2007 G-manbart found me 3k large pistol So I can get in a few hours practice Jim Link to comment Share on other sites More sharing options...
wsimpso1 Posted October 23, 2007 Share Posted October 23, 2007 Large rifle primers have several differences from large pistol primers: Longer cup as mentioned earlier; Thicker cup and/or harder brass, not to stand the firing pin blow, but to stay put under rifle level pressures. Rifles run up to about 70,000 psi while the most that large pistols see is about 44 Magnum and 10mm, which is around 45,000 psi. So the sturdier cup ends up requiring the stouter firing pin strike; More primer mix, and sometimes a more aggressive mix too; So, your loads would need to be backed off a little, your ammo might give slam fires, and they may not fire in your gun. You did the right thing. Give the rifle primers to someone who uses them in rifle ammunition. Now small rifle primers in small pistol ammo works fine in my gun even with a lighter mainspring than US Army Ordnance selected a century ago. Billski Link to comment Share on other sites More sharing options...
Sniperboy Posted October 24, 2007 Share Posted October 24, 2007 As was previously mentioned, a friend at the range mixed in some large primers in his 45 loads a year or so ago. The firing pin was not strong enough to detonate the rounds. Made for some very colourful words when the heat was on. Link to comment Share on other sites More sharing options...
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