To be honest with you, I think the primer did not go pop, or whatever it does, so I think I had a bad primer in a case with no powder.
Primer is a Winchester small pistol and it was seated properly.
The typical primer will make a significant amount of sound. Take one out into the driveway some time and throw it down forcefully on the pavement. I had a deformed primer once and did this to "dispose" of it. It's almost as loud as the firing of a chambered round.
In a solid load process, the odds of having a bad primer go into one case which got no powder is incredibly slim..... - give up the lotto, you've blown your luck on this one event.
Happy this event ended without mishap.
I initially used Winchester primers but switched to CCI after the first 1100 WIN. I've had better luck and performance from CCI 500's in pistol.