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Old April 1, 2020, 09:13 AM   #5
Senior Member
Join Date: November 22, 1999
Location: Green Country, OK
Posts: 780
This may not help much, because of the powder I'm using. I shoot reduced course NRA High Power at 200 yards with a RRA NM AR15 w/Wylde chamber. It's probably just like yours or very similar. The rifle and load shoot better than I do.

69g SIE HPBT Match bullet over 22.5/Data 2230-C, LC 11 cases (batch dedicated just for this rifle) with CCI #41 primers.

Data 2230-C was a surplus powder that was ready available some years ago and cheap. Burn rate is close to BLC-2 or 2460. I bought a bunch of it, and it's just about all gone. When it is gone I probably switch to H335.
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