I shot federal classic's for years after having trouble with winchester not wanting to expand(that was back in eariler 90's)--i don't know the numbers offhand but quite a few have died to them o% lost. And I maybe wrong but I think the power-shock took the classic's place-shoot the same in my guns with the same results---Bought about 15 boxes last year at wal-mart for different cal. paid a whopping 9.99$ a box!!