243 18 in barrel load test.
Loaded up the 243 with 37.5,38,38.5, and 39 grs of 4007 ssc today with 95 gr NBT. At best 1.5 inch groups. Gun is a ruger M77 with 18 inch barrel. Do you think their is a better powder choice I should be trying? I was goin to try IMR 4895.