I'm pretty sure they only make 3 models for the 10. 2 wad stripping types and the terror .720 constriction type. Yours should be stamped. I personally would never shoot a .720 in a 10 gauge; especially nothing bigger than #2 steel.I picked up a 10ga for my collection and it came with a Briley "over decoy" extended choke and a wad wizard. Is the wad wizard a waterfowl choke? If so can any size shot be used?