I was out testing my muzzleloader again today. I had cast some 45 caliber 300 grain pistol bullets to shoot in the Harvester crush rib sabots Gun is a CVA Wolf with a 1:28 twist. I shot groups at 100 yards with 65, 70, 75, and 80 grains of T7 fffg powder. I had sized the bullets in a .452 sizer, they ended up at .451 inches. At 65 grains I shot a 3 inch group, 70 was 2.5, 75 was 3.75 and 80 was 3.5. Not sure if I should keep working up or if I should work on tightening the bullet sabot fit. It seemed rather loose to me, I could push the bullet/sabot down using my thumb and 1st 2 fingers. Not sure, is that too loose a fit? I also don't know if the shot sabots tell a tale, but they were mostly found 60-75 feet from the muzzle. I had been shooting a tighter combo earlier where sabots we're found 120-150 feet away.
So like I said, where would you go next? Increase powder charge in 5 grain increments up to 100-110 grain range, or would I be better off bumping my bullet size up? I cast these myself, and before I thought about it I sized all 125 down to .451. I could try them as cast which is more like .4535. Alloy is. 1:20 if it matters. Thanks!
So like I said, where would you go next? Increase powder charge in 5 grain increments up to 100-110 grain range, or would I be better off bumping my bullet size up? I cast these myself, and before I thought about it I sized all 125 down to .451. I could try them as cast which is more like .4535. Alloy is. 1:20 if it matters. Thanks!