Old Navy
Gold $$ Contributor
I am in the process of building a 6BR specialty pistol. I cut a barrel back to 16.5" and ran my favorite 107 SMK load across my Magneto Speed. I was using 30 grains of Varget and 450s. This load clocks 2913 out of my 28" Critorian 1 in 8 barrel. The same load does 2693 out of the 16.5". I would like to stay with the 105 class bullets. Is there a better choice of powder for the short barrel or should I just leave well enough alone?