I've been wondering about powders, myself. In a 700 action, I've been able to get excellent accuracy with 154 grain Interlocks over R15, but they're s l o w w w... (low 2,500's fps). When I tried H4350 and H414 with that bullet, accuracy went to [excrement].
I've been thumbing through the Gun Gack book again, and noticed MD listing some 154 and 160 grain loads with R22 that got up to 2,700+ fps. D'ya suppose it would be worth checking out that slow of a powder (H4831SC and 4000-MR are also on the shelf), or maybe go to something on the faster end, like H4895?
FWIW, this rifle has always liked heavier bullets. Its favorite factory stuff is 175 Federals, and 173 S&B SPCE.
FC
