I picked up some Big Game and like it. Much finer granule size than I'd imagined having only used cylindrical powder before. Flows great and trickles great. Today, in my 20" Rem 7 7mm-08 with the 120 gr V-Max broke 3000fps at 50 grain charge. Working up to 52.5 provided little gain to about 3050. I've not done much else so far. There was slight bolt-lift I think at 52.0 and 52.5. WW brass and CCI 200 primers, 2.830" COAL.
FWIW 49.5, 50, 50.5, 51, 51.5, 52, 52.5 grains Big Game grouped 1.5" at 100 yards with 49.5, 52, 52.5 touching.
Slow barrel, was getting about 2720 at 43.5 gr Varget (book MAX plus 2gr) with the Hornady 139 gr BTSP. For reference, this barrel when using 45.0 gr Varget (book MAX plus 1.3) is producing 2920 with the V-max and 2890 using 120 gr NBT, which seems an accurate charge (5/8-3/4")with both bullets, if that's helpful at all.
As they say - don't try this at home. I am re-evaluating what I want to accomplish here but it does seem 3000 with the 120s was the initial goal.... OT
