View Single Post
Old March 2, 2013, 05:24 AM   #2
chris in va
Senior Member
Join Date: December 26, 2004
Location: Louisville KY
Posts: 13,120
I imagine it has to do with combustion rates. A slower powder may still be expanding past the muzzle.
chris in va is offline  
Page generated in 0.06335 seconds with 7 queries