Used this RCBS bench mount swagger to begin with when I first started loading .223 and had a bunch of mixed range brass, mostly crimped. Got it because my bro n law had one. Works fine.
https://www.rcbs.com/case-processing/accessories/primer-pocket-swager---bench-tool/16-9474.htmlThen got this Lyman case prep center that has pocket uniformers, pocket cutters, pocket cleaners, chamfering and deburring, all mounted and turning. Pick up a trimmed and deprimed case and run thru everything else you need to do to it before you put it back down.
What about longevity of the primer pocket; swagged vs cut? Does cutting take out enough metal to matter? And does swagging get the case head off level or out of square that you can really tell?
https://www.lymanproducts.com/case-prep-center-xpress