I own a 12 gauge model. Never really patterened it but it has killed many a goose and duck in it's first season. The only complaint I have is loading the thing. Mine has a button on the left side I need to push in order to load rounds into the tube. A second minor complaint is that I had some trouble with the second round loading properly (all semi's have this problem at one time or another). I found this problem happened because the gun was wet and dirty. Clean and dry it works fine. IMO not a bad gun for the price.