To the OP, I have been wondering the same thing. I have searched sites such as CTD, but they have no reviews of anything. My wife has a bantam Mossberg 500 20 ga., and I am planning to make it perform better than it has in the past. With a full choke, I wouldn't go farther than 20 yards with it. It is certainly more capable than that. Anyone on here that has some ACTUAL experience with a 20 ga Mossberg 500?