Loose primer pockets

[Tolkachi Robotnik]

Ugly is right.

Any holes thus can let gases come back toward the shooter from around the bolt. You don't want that to happen. I still believe you aren't in danger pressure levels with anything you've shown. Slight back outs of primers without the ring or flattening of the primer usually indicate low pressure.

WLR do have a tendency to show the ogive at the edge of the cup. When that is gone and the primers are flat in the pocket, the firing pin indentation has that crater lip, and you feel it was a little hot on the shoulder, you have pressure and you need to back off. You can have pressure and not much show, but the brass will not last very long.

If the loads are shooting well a little bit of primer protrusion is probably not much an issue. It probably means you will get lots of loads out of your brass.

 

[243winxb]

BGD, Remington 9 1/2 primers are the ones i had a problem with. They had defective cups. Pressure, high or low made no difference in my case. The photo above is from a online thread. But if you check my photo albums, there are more Win WLR photos with lot numbers. Any brand of primer may get a pin hole in the cup if defective. But most are caused by gas leakage between the brass & primer. This melts the primer & puts a pock mark in the bolt face.

 

[brickeyee]

The crater edges from the oversize firing pin hole may be large enough for the case to 'rock' on them on a truly flat surface.