I did a F&B on my new AT 2G and after polishing the chamber I put a round in the chamber and noticed that the round can be wiggled around in the chamber a bit. More so than in my Glock 26. I put a 9mm round in the chamber ( just as a check) and it fit in all the way but was a bit snug when fully seated and was tight. I know the 9mm is larger than the 9x17, but is the chamber supposed to be like this or did I polish to much? I remembeer it being loose before I polished but not sure how loose.