Agreed. You can only use normal ammo in turrets. With the current change to ammo drops, you are forced to craft ammo for turrets because you can't find ammo that works in the turrets after the early game.The ammo drop balance really needs to be looked at. Finding AP and HP ammo a bit more often is nice, but it's almost to the point of never finding normal rounds. I'd say even at higher stages it should be like 50/50 on what you get between normal and AP/HP.