Heavy bullets w/ faster powders

[justshoot]

Your shooting a Contender not a AR ? , I totally dumped the A#9 on my boltaction. Not AR so you got 'No Need' for all the gas & let-off & noise.
I been working up loads with Vihtiv. N-320 & it is like night & day on the sound. Less gas is less noise.
try using @ about 6.5 grn. N320 for 220 to 240 grn weight. 6.3 grn will get you to around the mid 900 fps mark for Vel. So thats is where I would start.
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