Just put together a little project running a 350 Legend on a Savage platform and have run in to an interesting situation.
When cases are fired, then trimmed to length/chamfered/cleaned etc, then re-sized the sizing process invariably bumps the case mouth back up a little, slightly changing the COL from the already trimmed (proper) length. As this round, and many others headspace off the mouth this can create an interference issue akin to not properly bumping back the shoulder on a bottleneck case.
It seems the best route is to re-size the case first, then trim to length.
I'm new to straightwall cases that headspace off the mouth so maybe this is what you guys have been doing all long.
Is this all there is to it?
Thanks, Matt.