Crimping big bore rounds

[Wyatt Smith]

No I measure the overall length to set it and use the lock nut to keep it tight. I seat all of them, then switch it to crimp. I have went to the lee FCD because I like it better. No worries about bulged cases from over crimp, and it’s pretty easy.

 

[Aussie_Hunter]

This is basically what I do for my .458 Lott. I've also had a range session where I kept the bottom two in the magazine and never fired. Then came home and measured. No compression.

YMMV

I have been roll crimping my 458 Lott loads with Hornady dies and have not been putting a heavy crimp on the with no issues as well.