43.0 grains IMR4350 or 46.0 H4831SC, R-P 308 brass, WLR primers, 140 Interlock Hornady, .272 3 shot at 100 yards Ruger American Predator rifle. Today new Savage 11 .260 Remington going to the range for break in with the same loads. Savage showed pressure signs at 43.0 grains of IMR4350, new rifle with a shallow throat and tight bore. Backed off to 41.0 grains and shot a .289 3 shot 100 yard group. Will do more testing but 4350 will be this rifles powder.
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