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Posted: 5/17/2013 4:10:19 PM EDT
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What about using Magnum SPP's in a regular pistol load? I read some about using them with a reduced load, and doing the usual work up. I got a line on several thousand Winchester's for a good price.
Thank's, Dave. |
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And, to blow your mind a bit, some of the gamers run Small Rifle in their major loads. In times like these, one has to do what's necessary to keep shooting!
(Myself, I was down to my last 100 primers. Fortunately, a fellow shooter sold me a case of SP for a fair price, and another friend also had a 'spare' 1K available, so I'm back in the game. I was actually starting to get a little depressed thinking I might not get to continue my USPSA matches this season. Plenty of Powder, Brass, Bullets...just somehow missed noticing how low my primer stash was. I was thinking of going the SR route in my race gun....) |
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I've loaded, and shot thousands of 9mm rounds with magnum small pistol primers from various manufacturers, and never had any problems. Remington, for example, their small pistol magnum primer is nothing more than their regular SPP with a bit thicker cup. Other manufacturers, such as Federal, SPMP is just a bit hotter than their regular SPP.
GlockMonk |
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As long as you work up your load with that primer, go for it.
There is no standardization for what "magnum" means in primers, so for some makers it means hotter flame, or the primer burns for longer, or the flame goes farther into the case... The original idea was to ignite tough to ignite powders, and there are obviously several ways to skin that cat, like the ones I mentioned above and more. But while some makers' "magnum" primers may add tens of hundreds of feet per second to a round's MV, others may not change anything. The one thing you can say IS standard among the different makers' standard versus magnum primers is that they are not identical, and that you must work up a new load if you change primers. Darn fat fingers... |
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I tested some small primers in my 40 S&W just to see if I needed to change the load if I substituted any of the primers I had on hand, here are the results.
40 S&W Win brass WSF powder 180gr XTP Primer --------- Avg Velocity Rem 1 1/2 SP - 921.3 fps (a thin cup primer, not recommended for 40 S&W, 9mm, 357 Mag, Ect) Rem 5 1/2 SPM - 903.3 FPS CCI-500 SP - 904.6 FPS CCI-400 SR - 916.3 FPS WSP - 918.6 FPS WSPM - 913.6 FPS WSR - 915.0 FPS The avg velocity for all primers tested was well within the ES of the load, therefore no change of the load is needed for any of these primers. If you're going to sub primers I recommend you check your load over a chronograph and don't just assume every load will react the same to a primer change. EWP |
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Quoted:
I tested some small primers in my 40 S&W just to see if I needed to change the load if I substituted any of the primers I had on hand, here are the results. 40 S&W Win brass WSF powder 180gr XTP Primer --------- Avg Velocity Rem 1 1/2 SP - 921.3 fps (a thin cup primer, not recommended for 40 S&W, 9mm, 357 Mag, Ect) Rem 5 1/2 SPM - 903.3 FPS CCI-500 SP - 904.6 FPS CCI-400 SR - 916.3 FPS WSP - 918.6 FPS WSPM - 913.6 FPS WSR - 915.0 FPS The avg velocity for all primers tested was well within the ES of the load, therefore no change of the load is needed for any of these primers. If you're going to sub primers I recommend you check your load over a chronograph and don't just assume every load will react the same to a primer change. EWP This is exactly what I observed! The magnum primers actually produced less velocity than regular SP primers. ETA: My testing was done with FED match primers. |
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Quoted:
Quoted:
I tested some small primers in my 40 S&W just to see if I needed to change the load if I substituted any of the primers I had on hand, here are the results. 40 S&W Win brass WSF powder 180gr XTP Primer --------- Avg Velocity Rem 1 1/2 SP - 921.3 fps (a thin cup primer, not recommended for 40 S&W, 9mm, 357 Mag, Ect) Rem 5 1/2 SPM - 903.3 FPS CCI-500 SP - 904.6 FPS CCI-400 SR - 916.3 FPS WSP - 918.6 FPS WSPM - 913.6 FPS WSR - 915.0 FPS The avg velocity for all primers tested was well within the ES of the load, therefore no change of the load is needed for any of these primers. If you're going to sub primers I recommend you check your load over a chronograph and don't just assume every load will react the same to a primer change. EWP This is exactly what I observed! The magnum primers actually produced less velocity than regular SP primers. ETA: My testing was done with FED match primers. I recently picked up 2K Federal SPM primers because they were available but I haven't had a chance to test them yet. |
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