Oops. (Do I have a problem?)

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Pretty standard for the primers to back out with no powder/bullet, and often times it will lock up a revolver. New cases too. Normally the forces from the bullet firing will back the case up and re-seat the primers.

Yep. A long, long time ago, when you could get a box of 100 CCI 550 primers for just over a buck, I decided to conduct an experiment on how to “deactivate” primers. I’d heard (I don’t remember where) that putting a couple of drops of oil in a primed case, then standing the case up overnight would spoil the priming compound.

So that’s what I did. I put a couple of drops of “3-in-1” oil in each of a half dozen 357 Magnum cases, stood the cases up on the back of my loading bench, and let them sit overnight.

I learn two things from that experiment: First, “3-in-1” oil will not deactivate primers overnight, and second, firing primed cases with no bullets or powder will lock up a Ruger Blackhawk real tight.:oops:

Many years later I saw almost the same thing when firing very mild (cowboy) 44-40 Winchester loads in a Colt SAA. There just wasn’t enough back pressure to cause the cases to be pushed back, reseating the primers, and the gun would lock up after 3 shots. All it took to solve the problem was to quit using such mild loads in my Colt revolver.:)
 
I’d heard (I don’t remember where) that putting a couple of drops of oil in a primed case, then standing the case up overnight would spoil the priming compound.
Yep, heard or read the same thing way back when, but it usually doesn't work.
 
I have had the same type of experiences. I'm a believer in the time warp. I lost a small salt shaker (Morton salt cardboard one about 1 1/2" tall) in a house I rented and lived in alone many years ago. Had it on the kitchen counter. Poof, it disappeared. Lived there for about four more years, only a handful of items on the small counter during that time. Found it packing up to move. Time warp for sure.
 
Slowly with sizing die set up long, just enough to push primer out

Originally, I'd use the sizing die with the decapping pin extended out to decap the primer before the case got seriously into the die.

I bought a universal decapping die for decapping spent primers at times and it works great. Among other things, not adjusting and re-adjusting the decapping pin on the sizing die was a plus.

The icing on the cake is when I bought a replacement single stage press for my RCBS Partner press, I kept the Partner press for tasks like decapping. The decapping die stays in the Partner press unless I use the press for another task so removing a live primer takes very little set up time. I only have to insert a shell older in the ram.
 
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