I've put about 4,300 rounds through mine (full size Storm, .40, G model). Independence, white box, Rem UMC, Federal American Eagle, all range ball ammo. Also shot Winchester Supreme Elites (my carry ammo) and Golden Sabres. Never a failure of any kind - UNTIL -
Bought some Fiocchi range ammo. Every 4th or 5th round, fail to feed. Don't know why. I shot it up and will never buy it again.
Point is, until I got the Fiocchi at the 3500 round mark, I would have sworn to you that the gun would eat anything.