Bores in the .730s?? This is a 12 gauge with ruined chokes and muzzles, and probably reamed out chambers if it will accept ten gauge cases. I will further predict that the seller has a bathroom scale that he weighs guns on. I am not saying this isn't a good gun, just that it isn't quite what the seller is describing. I commend him for giving proper bore dimensions as well as giving the true measurements of the jug chokes. A nine pound eleven ounce twelve gauge would be an unusual gun indeed. If the advertised weight is in fact correct, I apologize for my bathroom scale remark.