Todays results AFTER going over the throat with the proper pilot bushing attached to the throating reamer. Seems I can't go much over 2100 with either Varget, or IMR 4350 and 4831. All shot with air cooled, 15 BHN, sized to .368". All 3-shot groups shot at 50 yds.
48 gr Varget, 1987 fps = 7/8"
49 gr Varget, 2084 fps = 2"
58 gr IMR 4350, 2114 = 1.5" I'd settle for this one if push comes to shove.
57 gr IMR 4831, 2091 = 2"
As soon as I go a bit faster, the groups just come apart; 4-9".
I had a few pieces of brass to shoot one group with 30 BHN bullets and a upper charge of 60 gr IMR 4831.
2277 fps = 4.75" group.
Veral says if a hard, 30 BHN bullet hits hard bone it will be brittle enough to loose it's nose but the remainder should punch through. I want to try and find a mid, BHN bullet; harder than 15 and softer than 30. Maybe I can find a happy medium that will group around 2200-2300 fps.
Alan
