Hello. New to the forum and have a question. Ive got a new glock 23. Ive put about 150 cheap fmj rounds through it so far. Shoots great. The problem i had was it mis-fired twice in that 150 rounds. The ammo was a few years old and i could see where the pin hit the primer. It just didnt go off. Should i right this off as bad ammo or get the gun looked at? I would hate to "need" it and it go click and not boom!