John they are choked full and full by the measurements. I will use it on anything I can. We don't have official clays down here, just some informal shoots at a mates place. Always wanted a hammer gun and having shot these two have to say I love them. They just feel right. Best thing is they are unpopular and priced reasonably. I have out layed a massive $450 for these two. Bought one and a mate said he had one similar and gave it to me. Be fun on the geese and ducks.