[Unclenick]

JJ,

How is it locking up? If the primers are backed out, the load pressure is too low in your gun. This would be an extremely light target load. If the cylinder is jamming because the bullets are backing out until they stick out of the cylinder, then you gun is likely lighter than your friend's gun and just needs a stronger crimp in the rounds.


Fishhead1,

As discussed, that Midway complaint is not the fault of the primer, but of the load. When any center fire gun fires the primer backs out. That's because a primer is a small explosive and makes gas so fast it can't get out of the flash hole fast enough to prevent the pressure pushing the primer out backward like a small piston. That piston action also pushes the case forward, which makes the fit tight enough to jam a revolver. Normally, however, as pressure from burning powder next builds up in the case, the case head is backed up like a piston, too, which pushes it back over the primer, reseating the spent primer and loosening the jam. If a primer is sticking out and the case is still pushed forward by the original primer action after the bullet has left, then the only reasonable conclusion is the powder pressure never got high enough to drive the case back with enough force to reseat the primer.