Hi all. Apologies if this is in the wrong forum - I checked before posting.
I have a six month old 9mm Sig P226, Enhanced Elite version if that matters. The gun is stock - no modifications of any kind. I've fired 1400 rounds through this gun with ZERO failures of any kind. I've mostly fired 115gr and 124gr FMJ ammo at the range. S&B, Speer Lawman, and American Eagle. I've also verified that the Speer GD +p works fine. Everything was perfect.
Until last night! I had TWO failures to feed with Speer Lawman 124gr FMJ. The ejection was fine, but the round failed to chamber. It was perhaps only 1/3 moved out of the mag if that makes sense. I fired a box of S&B 115gr through and it was back to being flawless again.
I clean this gun every time I get back from the range. Quick clean out mostly, wipe gunk off slide and frame, and then regrease with TW25B. I always clean out the barrel with Hoppes 9, and rarely clean the mags but they really don't seem to be dirty! I like to *think* I have a pretty good cleaning regimen.
So, what could have caused this failure? I'm thinking weak rounds, but wouldn't that have made the ejection fail? Perhaps the mags were dirty? Haven't cleaned them yet. BTW the failure was with the same magazine. Any ideas?