IMO Reloader 15 is too slow for mild cast bullet loads. I would lean toward Unique, 4227 or 4198.
AA#9 or 2400 may also prove satisfactory.

I would also say that best accuracy might be obtained using 20:1 lead tin alloy and a bullet slightly oversized.

YMMV,
KN

Last edited by Ken Nelson; 01/22/26 06:35 PM.

Dodging lions and wasting time.....