bomadera Posted January 13, 2021 Share Posted January 13, 2021 Due to the primer shortage I've come across some Large Rifle primers, will they work in a 45acp? Link to comment Share on other sites More sharing options...
EEH Posted January 13, 2021 Share Posted January 13, 2021 Yes Link to comment Share on other sites More sharing options...
tires2burn Posted January 13, 2021 Share Posted January 13, 2021 Measure, measure, measure. Link to comment Share on other sites More sharing options...
Guy Neill Posted January 13, 2021 Share Posted January 13, 2021 Large rifle primers are taller than large pistol primers, meaning you may not be able to seat them flush or below flush. Above flush could result in a slam fire in autos, or bind the cylinder in revolvers. The primer pocket can be cut for the large rifle primers, but there is risk it would leave the web quite thin. Best to avoid using the large rifle in large pistol. Link to comment Share on other sites More sharing options...
galt11 Posted January 13, 2021 Share Posted January 13, 2021 What Guy said was my understanding too Link to comment Share on other sites More sharing options...
Farmer Posted January 13, 2021 Share Posted January 13, 2021 (edited) This has been asked before. And the answer is still NO. They are .009 taller. Edited January 13, 2021 by Farmer Correction Link to comment Share on other sites More sharing options...
AHI Posted January 13, 2021 Share Posted January 13, 2021 NO NO and NO Link to comment Share on other sites More sharing options...
Trump Posted January 14, 2021 Share Posted January 14, 2021 Yes, they will work great. As long as you trim down your brass case length .010 shorter they will work great. I've shot thousands of them with no problems. Hammer spring needs to be at least 18 lbs Link to comment Share on other sites More sharing options...
bomadera Posted January 18, 2021 Author Share Posted January 18, 2021 Thanks guys, I will NOT be using these LRPs in my 45!! Link to comment Share on other sites More sharing options...
bodybag0 Posted November 7, 2021 Share Posted November 7, 2021 Yes it will work. I do it now as we speak,,. The only Crony testing I've done is with CCI LPP VS CCI LRP. Here's my Data. 6shot group. The only issue is LRP is .005ish taller. I get about a 3% light primer strike failure. Its my opinion that CCI uses the same primer compound for LPP and LRP. the data below shows that LRP are a little weaker. Durring the pandemic I was able to trade one box small pistol primers for two boxs of LRP. People dont know what they dont know. DE 1911 5" barrel 45acp 230 FMJ OAL= 1.265 6.0gr MP 190 CCI LPP. Hi 789 lo 741 AVG 759 ES 55 SD 20 CCI LRP Hi 779 lo 743 avg 768 es 45 sd 15 Link to comment Share on other sites More sharing options...
zzt Posted November 11, 2021 Share Posted November 11, 2021 b, believe the nos. Do not believe that LPP and LRP have the same priming compound. CCI has clearly stated they do not, as have Federal and Winchester. Don't know about the others. IF you can seat them flush or slightly below, AND your mainspring is strong enough to sufficiently dent the harder primer cup, THEN yes they will work. If they sit proud you risk a slam fire. Swap them with someone. Link to comment Share on other sites More sharing options...
dannyd Posted November 11, 2021 Share Posted November 11, 2021 Yes, they work very well and if you mill out the pockets of 38 special and 357 magnum they work there too. Link to comment Share on other sites More sharing options...
RudyVey Posted November 12, 2021 Share Posted November 12, 2021 11 hours ago, dannyd said: Yes, they work very well and if you mill out the pockets of 38 special and 357 magnum they work there too. all my 38 spl and 357 brass has small primers..... Link to comment Share on other sites More sharing options...
AHI Posted November 12, 2021 Share Posted November 12, 2021 So far this year I have DQed 4 people. All 4 were loading Large rifle primers in pistol brass. One was shooting a 10mm. Other 3 were shooting 45acp. All 4 slam fired. All 4 DQs were on load and make ready. All 4 hit something within 10 feet. Do what you wont this is a bad idea. Link to comment Share on other sites More sharing options...
Jim Watson Posted November 12, 2021 Share Posted November 12, 2021 Just for fun, I reamed some .45 ACP primer pockets with a rifle size primer pocket uniformer. I sectioned one to check web thickness and it was not reduced much in proportion. Rifle primers seated to the now very flat and square bottoms were below flush, chambered safely and fired every time. But it is a lot of work and I would have to be really hurting for something to shoot. I have in my odds and ends, a factory .38 Special case with large primer, so that can be done, too. I doubt the usual match revolver with Grandma's hairpin for a mainspring would fire a rifle primer, though. Old old item in American Rifleman: At one time NRA members could get ammo and components from DCM very cheaply. Parts, too. A guy with a .38 Super looked longingly at all those large pistol primers and .45 bullets. So he bought a .45 barrel, .45 brass, bullets and LPP. He turned down the heads and rims of .45s to fit the breech face of his .38 and went shooting on a budget. Nice that he had a lathe to use. Link to comment Share on other sites More sharing options...
dannyd Posted November 12, 2021 Share Posted November 12, 2021 5 hours ago, RudyVey said: all my 38 spl and 357 brass has small primers..... I milled out the primer pockets to test. The original 357 magnum used large pistol primers in 1935. Strange part I got the best standard deviation with large rifle primers on everything I tested. Standard deviation was under 15 fps. and extreme spread under 40 fps. For revolvers that very good. Link to comment Share on other sites More sharing options...
Farmer Posted November 13, 2021 Share Posted November 13, 2021 (edited) Most of you guys won’t even sort by headstamp or even clean primer pockets let alone machine a 1000 of them!! Edited November 13, 2021 by Farmer Link to comment Share on other sites More sharing options...
dannyd Posted November 13, 2021 Share Posted November 13, 2021 11 hours ago, Farmer said: Most of you guys won’t even sort by headstamp or even clean primer pockets let alone machine a 1000 of them!! I do sort by head stamp, trim, drill flash holes and clean the pockets. Each piece of rifle bras usually takes an hour to prepare. It's my only hobby and I have the time. Did the 38 and 357 test because someone asked me if it were possible; well I knew 357 worked with Large pistol to start with, so I tried it. Link to comment Share on other sites More sharing options...
Sigarmsp226 Posted November 13, 2021 Share Posted November 13, 2021 On 11/12/2021 at 6:51 AM, AHI said: So far this year I have DQed 4 people. All 4 were loading Large rifle primers in pistol brass. One was shooting a 10mm. Other 3 were shooting 45acp. All 4 slam fired. All 4 DQs were on load and make ready. All 4 hit something within 10 feet. Do what you wont this is a bad idea. This is scary to read as I run a monthly Steel Challenge match and the “Load and Make Ready” command by many shooters seems to be a “casual” process with some shooters, while not breaking the 180 rule, do not have their muzzle pointed down range and at a berm…… AHI - Thanks for posting this information. Your experience will be shared with our RO’s and every shooter starting at our match next month…..With our very experienced shooters, who I know to be active reloaders, I tend to be a more comfortable/relaxed when I give this command to them…..With your post - This just changed….Thanks Again…Mark Link to comment Share on other sites More sharing options...
Sarge Posted November 13, 2021 Share Posted November 13, 2021 8 minutes ago, Sigarmsp226 said: This is scary to read as I run a monthly Steel Challenge match and the “Load and Make Ready” command by many shooters seems to be a “casual” process with some shooters, while not breaking the 180 rule, do not have their muzzle pointed down range and at a berm…… AHI - Thanks for posting this information. Your experience will be shared with our RO’s and every shooter starting at our match next month…..With our very experienced shooters, who I know to be active reloaders, I tend to be a more comfortable/relaxed when I give this command to them…..With your post - This just changed….Thanks Again…Mark If you are using “Load and make ready”you have bigger problems to worry about. Link to comment Share on other sites More sharing options...
Sigarmsp226 Posted November 13, 2021 Share Posted November 13, 2021 Sorry - Sarge is right. The commands for USPSA are: “Make Ready” then “Are you Ready” ”Load and Make Ready” is the command for IDPA which I am a certified SO and help with local matches from time to time….. With this said my next command is - “I am out of here” because no matter what I seem to post - It is never acceptable or right…I guess since my mind has started slipping and forgetting it is best that I keep my thoughts, opinions, suggestions, experiences, and comments to myself….It been a learning experience…..Mark Link to comment Share on other sites More sharing options...
AHI Posted November 13, 2021 Share Posted November 13, 2021 (edited) This is for 3gun. Not USPSA. And I Actually Say Make Ready. Edited November 14, 2021 by AHI Link to comment Share on other sites More sharing options...
Sarge Posted November 14, 2021 Share Posted November 14, 2021 23 minutes ago, AHI said: This is for 3gun. Not USPSA. He said steel challenge Link to comment Share on other sites More sharing options...
zzt Posted November 14, 2021 Share Posted November 14, 2021 The range commands for USPSA and SCSA are identical. The only difference is in the expected behavior after the .........hammer down, .......... command. Unfortunately, lots of Steel Challenge only ROs do not use them properly. Link to comment Share on other sites More sharing options...
xrayfk05 Posted November 14, 2021 Share Posted November 14, 2021 (edited) In IPSC the command is "Load and make ready" or "make ready" maybe that is where the confusion comes from? Edited November 14, 2021 by xrayfk05 Link to comment Share on other sites More sharing options...
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