Got to the lane and removed the mag, with the Critical Defense ammo, and ejected the one in the chamber. Put the mag aside along with the ejected round and the backup mag. I loaded one of my other mags with the Critical Duty and proceeded to shoot without any problems. Shot a couple more mags worth and then switched to WWB for practice.
After I was done with the 100 rounds of WWB, I decided to go ahead and shoot the Critical Defense I had on my two carry mags (a ten round and the 17 backup). I loaded the 10 rounder in the gun, which is the one I carry, and loaded one in the chamber, removed the mag and topped it off with the round I had removed from the chamber earlier. So now I had the round that was the first on the mag in the chamber and the one that had been in the chamber was now the first in the mag. I took aim at the target and pressed the trigger. Nothing but a CLICK. After checking that the mag was properly seated and the slide was fully forward, I ejected the round. There was a nice dent on the primer, so it was not a light strike. I then shot the remaining 10 rounds in the mag without any issues. Also shot all 17 rounds in the backup mag without any problems. I then reloaded the dud round and again tried shooting it with the same result, a CLICK.
Bottom line, had I been forced to use my gun in a self defense situation, the second round would have been a dud. Glad I found out in the range rather than in a self defense situation. There was nothing in the round that signaled that it would be a dud.
