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9mm autocomp load
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I have been messing around with the autocomp powder I recently got.

Loading 147gr plated xtreme bullets
COL 1.160

Started at 3.9 gr but was having issues ejecting spent casings. Got a lot of stovepipes.

Tried 4.1gr stovepipe issue went away, brass was ejecting nicely, no real issues

Tried 4.3gr since I had a dozen made up anyways.
No overpressure signs, again, casings ejected nicely and even piled up pretty nice on the ground! Accuracy seemed good too.

Only problem I am seeing is the 4.3 grain is OVER what my manual says to use for 147 gr bullets. The max says 4.1 Their COL was 1.130. I was using 1.160.

by adding more powder and extending the COL just a touch, it seems to still work well in my M9 but could it potentially be too much pressure in another handgun such as a walther ppq or Glock? Id hate to let my friends shoot it and blow their guns up or hurt them.
 
Posts: 22 | Registered: 21 July 2013Reply With Quote
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Oh yeah, the powder meters nicely, but when firing it doesn't seem to burn completely. I read this powder was meant for suppressed guns, but seeing as it's the only powder in stock, I gave it a try. I dont have a suppressor.
 
Posts: 22 | Registered: 21 July 2013Reply With Quote
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