Right now in my 835, I am shooting a Briley Hevi-shot choke with a .675 constriction. I get a pretty good pattern with around 20 hits in the vitals at 40 yards. The choke is clearly much tighter than the diameter of the barrel, even by looking at it. What I am saying is that I have heard that a less constrictive choke like a full, will throw better patterns with hevi-shot than a tighter turkey choke like my Briley or an Undertaker. Has anyone else heard this or tried it?