“When I purchased my Ruger SR22 I used a few different brands of ammo but was not pleased with the feed and/or misfiring. A blogger suggested CCI mini mags for the Ruger. For the last year I have used only CCI mini mags in the pistol with 100% satisfaction, shooting approximately 2,000 rounds.”
“This stuff (at least 100 rds) went thru my guns (Ruger Mark IV, Victory 22 and even my very fussy Bersa Thunder 22) without a hitch. However, be warned there was a very waxy coating on the cartridges when I took them out of the box, and a couple of the bullets "turned" in their shell casings, a la Remington cheapos. Once you wipe the wax, however, they "choot" pretty good. I'd give them a B.”