I will be at BT, and shooting my Brassers.
Lets plan on an evening over dinner of discussion on the topic at hand.
How many will be there shooting the brass shells or have a sample for show & tell ?
I only do a roll crimp on the case when it needs a touch up, or when they are new. And I do not anneal the case mouths. You can, BUT! be careful how far down you go. Sage Rider annealed some case's and went to far, they expanded in the chamber and he had to drive them out with a cleaning rod. I would say, no more than a 1/4".