After success with the lee soup can and.150 grain bullets in 3006, I decided to try a heavier load with a big boolit. This was a 198 grain flat point gas.checked mold from noe, I believe 311 195 is the mold number. I tried 36 to 40 grains of varget and it was a mess. All over the place at 50 yards. Where do I start trying to fix this? A few possible culprits:
I sized this one to 311, while the other two boolits were 3095 to 310. Maybe the big one is just too fat?
I seated this very long boolit so I could crimp in the crimp groove. Maybe seated top deep?
Wrong powder or charge?
Something else?