Ran an OCW test today on some powder charges that I had determined might be productive, 3 of the groups look good dropping in directly under the point of aim. What I thought was odd is that they all ran a fairly vertical string, all holes touching and the string running about 3/8 inch.
Things that I suspect could cause this are, shooter and/or new brass rather than once fired. It was cool 40 degrees with about 8 mph wind right to left. Shooting at 100 yards.
6.5 Creedmoor, Starline brass, 140 gr ELD-M, CCI 400 primer, H4350
Things that I suspect could cause this are, shooter and/or new brass rather than once fired. It was cool 40 degrees with about 8 mph wind right to left. Shooting at 100 yards.
6.5 Creedmoor, Starline brass, 140 gr ELD-M, CCI 400 primer, H4350