Originally Posted by mauserand9mm
Originally Posted by Jordan Smith
Originally Posted by LFC
Looks like you have two shoulders....
Originally Posted by LFC
I shot a 7mm mag for years stoked full tilt....neck sized only without any issues. The primer pockets will be the first thing to go.

After about 3 loadings I just pitched the brass.

The belted magnums head space on the belt....why the need to bump the shoulder ?
You sort of missed the boat, here. Headspacing on the belt can cause excessive case stretch through the body, leading to case-head separation, etc.

Only if it has excessive headspace in the first place (on the belt). Using the shoulder instead for headspacing can help fix this problem.
True, but that's often the case (see what I did there?) with belted magnums.