benchrst
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Posts posted by benchrst
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A bit apples to oranges, but might be helpful.
10MM
Ba 7.5 / 9.10gr / 155 MG / 1.255 / new Starline / CCI 300 / 54 degrees / 1,156 fps
N350 / 9.00gr / 155 MG / 1.255 / 1X Starline / CCI 300 / 54 degrees / 1,218 fps
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If your intent is to reload the Armscor brass I would do some research, I've read some sketchy things.
If the brass is bulged, then it's compromised, especially if there's a smile line (shear). That said, mild loads shouldn't be a problem. As recommended, try whatever
sizing die your end up buying, and if they don't plunk get a bulge buster (needs the corresponding FCD),
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The following are guesses, and might not be very good ones
Your OAL has the bullet very near / touching the rifling.
The bullet OAL varies enough to effect pressure (seems pretty unlikely).
Bullet has a residue that's effecting grip.
20% of rounds failing to fire. Is it powder or CCI primers?
in 9mm/38 Caliber
Posted
1: You got a crap box of primers (unlikely)
2: Your striker channel is packed with crap / weak spring / weak hammer spring (more likely)
3: Primer not seated deep enough (most likely)
.02