i just finished at the range with some of the new 180 gr accubonds. I had been haveing some trouble coming up with a load to shoot partitions thru this rifle and the best i could come up with was just under 2.5 in @ 100 yards.

all groups were 5 shots @ 100 yards from the bench .300 WM
RL 22 70 - 78 gr in 1 gr increments
I would not recomend anything over manufacturers specs for powder loads
with the accubonds the worst grouping i got was 1.550 in. (this was a very hot load) the best grouping i got was .840 in.
in case any one was wondering the O.D. of a US nickle is .837

compared to the scirrocos worst group 1.985 in. (top end load) and best group .990 in.

partitions worst group 2.450 in. best group 1.220 in.