Either of your handguns will shoot the Mini-Mags without a problem. "Mini Mag" is mostly a marketing ploy. They aren't any hotter and pressure is no higher than with any other brand of high speed .22 long rifle ammunition. Use Mini-Mags for anything you normally use other .22 ammunition for - hollow points for critters, solids for plinking and targets. You gotta go back the the very early .22 handguns, the Colt pre-Woodsman for example, before you need to use standard velocity ammunition. I have a 1949 High Standard HB that gets only standard, but your modern guns will shoot any factory .22 Long Rifle ammunition. Not .22 Magnum of course, but the Mini-Mags are not .22 Magnum.