Tight chamber, multiple failure to feed - Faxon Firearms Duty Series Glock 19 Compact 9mm Pistol Barrel

This is a nice looking barrel that appears to fit the slide perfectly. Unfortunately the chamber appears very tight and as a result it is picky as to what ammunition it will feed. Sometimes the round won't chamber at all (not close completely), or the chamber round appears to chamber and the primer hit is too light. Cleaning the barrel with certain failed rounds helped them feed properly. Rounds that would not allow the slide to close completely would fire reliably in my XDm and M&P 9. Yes, these rounds are my competition reloads, but that are 100% reliable in three other handguns.