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Old September 30, 2002, 04:59 PM   #1
444
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Rifle primers in Pistol Cartridges ?

I recently bought a large lot of reloading components at a terrific price. Now I am trying to figure out what to do with this stuff.
Among the items are in excess of 15,000 small rifle primers. The only caliber I load that uses small rifle primers is .223 Rem. I load maybe 300 rounds a year for my two bolt actions. In the AR I shoot cheap stuff and don't pick up the brass. So, what the hell am I going to do with these primers ? What dire problem would arise if I used these in my .357 loads ? That would certainly solve the problem since I shoot a ton of small pistol primers.
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Old September 30, 2002, 05:42 PM   #2
Jim Watson
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In the deep distant past, before Federal made a small pistol magnum primer, they recommended loading .357s with their small rifle primer. Many IPSC shooters use small rifle primers - I think the Remington 7 1/2 is popular - in their overloaded .38 Supers to delay primer cratering, extrusion, and piercing. So it can be done, but it will affect ignition. I would cut the load and sneak back up with an eye on velocity and casehead expansion. I would probably settle for a little lighter and slower load just to be sure.
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Old September 30, 2002, 06:04 PM   #3
Ben Shepherd
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The "original" 357 mag load was a nickle winchester case, 158 gr. SWC, small rifle primer and 15.8 grains of 2400. the idea was the rifle primer was stronger, to handle the high pressure level(40,000+ cpu).

WARNING: Do not use this load in a lightweight/weak gun.

I shoot these in nothing weaker than a GP100.
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Old September 30, 2002, 06:39 PM   #4
tonyz
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I bought 1000 small rifle primers by mistake at a gun show. I used them in place of small pistol primers and they work without a problem in my 38/357's. I even used them in my 9MM loads.

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Old September 30, 2002, 07:35 PM   #5
Jim Watson
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They tried a number of things to improve ignition in magnums. About five years ago I picked up a clean, bright, nickel plated case headstamped "R-P 357 Magnum" with LARGE primer.
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Old September 30, 2002, 08:00 PM   #6
Southla1
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Yes you can use them in .357 cases BUT they are hotter than the Small pistol primers and they may be more difficult to ignite due to a stronger primer cup. Aside from that use them, just watch your load and start with the starting load listed.
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Old September 30, 2002, 08:29 PM   #7
rick_reno
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rifle primers in pistol cartridges

I use small rifle magnum in my FA 454. A local gun store was going out of business and had a box of 1000 for $4 - they'll last me awhile.
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