Forum: 300 Whisper Rifles and Pistols
09-03-2010, 01:33 PM
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Replies: 19
Views: 3,400
6 grains of 2400 with a 220 grain bullet is...
6 grains of 2400 with a 220 grain bullet is almost certainly what got you in trouble. I use 8.0 grains of 2400 behind 208gr Amaxs and thety are subsonic.
I think this is why using a chronograph...
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