So Ammo To Go had a sale on some S&B range safe last week (might still be going on). I picked up the case of ammo and got out to shoot it this weekend. Yesterday I only brought the gun and 50 rounds of it with me to my range...no tools...see where this is going. On the last round of the mag I had a failure to extract. Case was jammed in there pretty good. I eventually got it out (when I got home) by racking the slide pretty damn hard (it slipped over the case lip a few times). I was hoping it was just a bad round. So I went back today with some more ammo (and some tools this time). I grabbed 50 rounds of WWB as well as a fixed variable. So I began with shooting the S&B stuff and had a FTE on the 3rd, 6th, 8th and 13th shots (got sick of it and stopped at 13). So I loaded up the WWB and it shot just fine. I also shot of a mag of Corbon DPX that worked fine as well. Looking at the cases it seems as if the S&B is rather burred up as well. I don't know if anybody else has similar experience but I'm taking a guess that it's the ammo and not the gun (the gun has fed everything else just fine, WWB, PMC, Blazer Brass).