Fellow shooters, Anybody have any specific brand / bullet weight preferences or problems with any factory new 9mm ammo? Also, has anybody had any bad experiences with any specific brands of 9mm ammo? In an attempt to determine the best ammo for my, I've experimented with several new WWB 115 FMJ, UMC 115 FMJ, CCI Blazer Brass, ADCOM 124 Grain NATO Surplus, and Winchester 124 Grain NATO excess, and some Winchester 147 Grain JHP. Of the various brands/sizes I have fired, the only one I didn't like and won't ever trust again is ADCOM NATO Surplus. Out of a box of 50 ADCOM, experienced three FTF and one KaBoom (KB) in my G19. I found one round in another box in which the bullet was seated too deeply into the brass case. That KB was a shock, to say the least. KB blew the magazine completely out of the weapon and resulted in a numb shooting hand with a bruised trigger finger for a few days. Never had that happen before, though I have heard it is possible with any gun. When I recovered my wits, I cycled the slide, which ejected a brass case a half-moon blow-out at the base. I field-stripped the G19 and found no projectile in the barrel. I attributed the failure to either an overloaded round, a weak case, or some combination thereof. Needless to say, I did not fire anymore ADCOM ammo. Had my G19 checked out by a Gunsmith and he determined it to be OK to fire. It has been OK since, though I did go ahead and replace the magazine catch just in case. Of the all other brands fired, I find that the NATO-spec ammo is relatively hot stuff, as evidenced by the recoil and snap of the slide. Got the same recoil and snap result in my 2nd Gen G17. I don't recommend ADCOM to ANYONE! Found out after the fact that the stuff is made in the Persian Gulf region, though they claim to be a state-of-the-art ammo manufacturing facility with NATO qualfication. Does anyone know if NATO rated ammo might be SMG use only? The box certainly didn't say that. Currently I'm shooting some excess production Winchester NATO 124 Grain FMJ and an experiencing no problems, just a snappy slide and every round fires.