Finally found a shooter. This gun has proven to be extremely finicky though. If you have this gun you gotta try this choke. I shot 3 targets. First one came it at 123 hits but was from a clean barrel. Next two were in the 140-150 range plus the patterns were shaped fairly consistent.
Sumtoy did it........
Did you try the Trulock HW #7 choke at .565 with that load in the M2?