Is there anything that can be done to a loose primer pocket to tighten it up?

Probably but that doesn't mean you should.

Throw them away, over pressures lead to primer pocket enlargement.This sounds like a accident waiting to happen.

By any chance are you using Remington primers? They have the smallest OD of all the LR primers out there. You may very well have enlarged primer pockets, but before dumping the brass I'd try other primers. I've been thru this drill before.

Primer pockets can be measured with .001 increment gauge pins.
Primers can be measured with micrometers.

I have started out using one brand of primer and changed to another when the primer pockets got loose. My primer pockets get loose due to wear from many multiple loads not from high pressure.

Check out the link and scroll down for the dimensions of primers.

http://www.radomski.us/njhp/cart_tech.htm

how many times this brass been shot? this does not mean you are over pressured. when i shoot brass around 6-8 times mine get loose to. i just toss them. and yes remington primers are the loosest fitting. primer pockets do stretch thats a fact.

quote:

Originally posted by Grumulkin:
Probably but that doesn't mean you should.

quote:

Originally posted by aktoklat:
Throw them away, over pressures lead to primer pocket enlargement.This sounds like a accident waiting to happen.

Two good pieces of advice in a row.....