I read somewhere Brian Litz, Berger's Ballistian, said 0.015 off the lands to start. I loaded 0.003 on either side of the 0.015 off and shot. I did the 0.015 off first, got groups at 0.035 at 100yds. II said to myself my work here is done. I did shoot the others, since it was a nice day and did not do any better than the 0.035 groups. This was with my 10 FP-SR .308.
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