Bismuth is just about totally gone off the market, loaded AND loose shot. Some folks are buying whatever loaded ammo they can find (often 3,5 inch 12ga, and often #2 or larger shot), just to get the shot to load.
I used bismuth and Kent TM interchangable for a couple of years. Not much, if any, difference in how they killed ducks over decoys. Both performed pretty much like Cu-plated hard Pb-alloy shot.
Only problem with Kent TM is that most of they ammo they load is overly heavy waterfowl loads. I buy the "upland game" or "field" loads whenever I can find them. They did (hope they still do) load some nice 1,0 oz loads in #6 shot at about 1250 fps. Most common 16 gauge loads are 1 1/16 oz of #5 at 1300 fps and 1 1/4 oz of #5 at 1250 fps. Both may recoil more than old wood will tolerate for long. Neither are pleasant to shoot in a 6,0 - 6,5 lb double.
Niklas
