You would be surprised at just how long many factory chambers are. wink. Many are far longer than reloading manual max length specifications.

I would do as you said, trim to the shortest case and then forget about it for use in that rifle.

Last edited by RickF; 01/08/20.
Anybody who seriously concerns themselves with the adequacy of a Big 7mm for anything we hunt here short of brown bear, is a dufus. They are mostly making shidt up. Crunch! Nite-nite!

Stolen from an erudite CF member.