I, and others, have asked that question many times with no knowledgeable answer. Can't find twist rate anywhere. I've tried lots of slug weights and none were reliable. Pellets, however, are great. I use 18 grain H&N.
As far as I know the avenger barrel is the same as the one on my liberty and Aspen. It's 18-1 and it loves AVS slugs which were designed for it. It needs the.217 size that Steve sells with the cup base.
As far as I know the avenger barrel is the same as the one on my liberty and Aspen. It's 18-1 and it loves AVS slugs which were designed for it. It needs the.217 size that Steve sells with the cup base.