IIRC, Minimag case is a bit longer than a normal 22LR, that's how CCI stuffs extra powder in (overall length is the same). There will be a powder ring left after shooting normal 22LR that Minimags will get stuck on after expansion. Shoot Minimags first, than switch to other 22LR.
I shot my 454 Casull loads first, before switching to 45 Colt for that same reason.
I shot my 454 Casull loads first, before switching to 45 Colt for that same reason.