I don't own one and there are members here that do, so I can't offer first-hand experience, but is it my understanding that non-toxic is required in SD on state lands?
I have essentially the same restriction here in WA state with regard to non-toxic shot. For Bismuth, either 2 3/4 or 3" you can only get 1 oz loads from Kent. I've gone to MT many times and only shot 2 3/4" either in 16 gauge (no 3" anyway) and 12 gauge using lead and never felt hampered. I've killed pheasants here in WA over pointing dogs the last 2 years using the 1 OZ Kent Bismuth in a CSMC Revelation and CZ Bobwhite in 20 gauge and they all hit the ground dead. If you like the gun I wouldn't sweat it.
Bruce
