Well to me theres only one shell,and ive been shootin them since they came out,win,supremes 3 and half inch 4 shot ,,with a 24in barreled benelli pump and a scope,with a under taker choke or jellyhead by primos,,I shot 5 birds this year with the new exstended range win 4 shot,it did just as good or better ,they died just the same.