Ranged weapon sound pitch not working AND get damage not working

I'm trying to make a gun where you can shoot it 6 times before it changes you to an 'empty' version of the same gun. If you shoot 6 times, however, with 'get damage of item = 1', it gives you it on the first shot, with get damage at 0.1 it doesn't give you it at all and the gun just breaks. The sound pitch is also way too high. How do I fix these two problems? They're completely ruining the mod.