RB, I have that same barrel (GM .40 x 38x 13/16)I've been shooting 45 grs. 3F goex with .395 ball and .015
ticking spit patch and getting 1690 to 1700 fps.
That load was the 1st one I tried and it shot so well I've never shot any other. Great caliber, yours sure is a beauty.
Deadeye
ticking spit patch and getting 1690 to 1700 fps.
That load was the 1st one I tried and it shot so well I've never shot any other. Great caliber, yours sure is a beauty.
Deadeye