You were dead on with ammo being the problem. I was able to clear the weapon using you technique. US cartridge was the ammo. I guess you get what you pay for 500 rounds in a bag. Thanks for your help.
I have had my slide lock closed with a round in the chamber 3 times at the range. I drop the mag and cannot rack the slide to eject the live round. I have had to fire the round and the slide works. Does anyone have any ideas on the problem?