I gave up on early bismuth because birds didn't fall as they should, and covering cripples on the water with a plume like Niagara didn't kill them---as if they were protected by some sort of magic. Then the word shattering came in vogue and I put it down to poor technology.

I just bought a flat of 12ga Kent 2 3/4 bismuth to see if there's improvement but expect it will kick the snot out of me as last year's 2 3/4 Kent TM 1 1/4oz at 1400. Killer load in my Beretta but to enjoy old classics will have to go back to new jugs of bismuth. Beretta 686 good but not the same.