As an example we have representative semiautomatic pistols from Glock, Ruger, SIG and S&W chambered in 9mm-Luger. The test ammunition is WWB lets say purchased from Wal-Mart. Three of the four pistols involved function with out a problem and one pistol is functionally problematic. Do we conclude the ammunition is the problem or the one pistol that was functionally problematic is the problem?
Since that doesn't seem to be the case here....why bring it up? I didn't see where the OP said the ammo worked just fine in other guns...