I love my rigby. DF I’m really loving the 400 Aframe at 2450 with 102 grains of h4831.
Rigby bud uses 100 gr H-4831 with his 400 TSX’s. Speeds a bit north of 2,400 fps.
I’m sure those A-Frames will whack about anything.
Interesting discussion, SAF vs NPT. Both seem to work.
DF