After many years of perfect and 100% reliability, my G23 now fails to feed about 8 rounds per 200. The failure is always on the second or third round and it simply fails to chamber a round. No, I do not limp wrist it. Now, I have a hypothesis: I bought 1000 rounds of Blazer aluminum 165 gr range ammo and that is when the problems started. It is NOT the mags (happens on different mags - even two of the three new ones I bought last week., So . . . what do you think? Is it the week ammo?