A few months ago I experienced persistent, and consistent, problems while firing the P226 9mm by Sig Sauer.
It would fail to feed from the magazine properly with every magazine load I put through it.
The diagnosis was that it was magazine related, but I was unable to test that theory until recently.
The solution to the problems? Use Mec Gar mags.
But, while shooting it I also discovered that due to my large hands and the way I grip my other semi-autos (1911, HK, FN, Glock, etc.) I was getting my thumb on the top of the slide release on the SIG and therefore the slide failed to lock back while shooting.
I wish SIG put their slide release forward of the decocking lever.
Anyway, here's a video report, I was very pleased with the accuracy of the SIG P226.
Has anyone else had a fail to feed issue with their SIG? What was the solution for you?