The choke is a Patternmaster Extended Crio for Beneli and Barreta. I have patterned it with Winchester 8 and 6 lead as well s Kent 2 and BB steel. It patterns them all into that same tight circle. I have only shot clays with it, it will smoke the clay well past 55 yards. Have not shot any birds with it but it is so tight I wouldn't use it on birds under 45 yards, I think it would put far to many pellets in them. I would use the IC that came with the gun, it patterns about 30% looser.
12ga Benelli Crio/Beretta Optima Plus Classic Extended Range - Ported
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Price: $99.99
Model Number: 5174