Hello all. I've recently purchased a Gx4 and went to the range today for the first time with it. I thought it was great... Although when i got home i decided i should clean it just to get use to field stripping it. I noticed the muzzle is not longer perfectly round... "also was not looking down the barrel in this photo was using my phone to the side." This can't be normal? Was using just regular 9mm ammo from Winchester.