20 inch barrel on my turkey gun. Indian Creek .650 + Hevi-13 #6 in 1 3/4 oz (old white shells) = 50 yd turkey gun.
Does this happen to be a Mossberg 535?
My new gun is a 535 Mossberg with a 22" barrel. Much nicer in the woods, short enough for the blind, and it patterns awesome with the Indian Creek/Hevi-13 combo.
What Hevi-13 load are you using with your 535?