I recently got my G17 gen 4 back from Glock because of a BTF issue. They didn't fix it, and said I need to be shooting 124 grain ammo. "The gen4 Glocks are made to be a military pistol and are built to handle a higher pressure load. The reason you are getting BTF is because you are shooting Winchester 115 grain." (Of which I have a bulk pack of 1000 of...) Seriously? Posted using Outdoor Hub Campfire Wanna kill these ads? We can help!