Glad you asked. I got my CCI Ammo mixed up in previous post. I meant Velocitors and not Stingers. Probably due to the higher velocity.

CCI Mini Mags are 1235 Feet per second (FPS)
CCI Velocitors are 1435 FPS
CCI Stingers are 1640 FPS

I had asked "Will it be ok to shoot CCI velocitor throught it occassionally"

Quoting the Ruger response. "If it is 1400 FPS then we would not reccomend using it as a steady diet"

I believe the Stingers have a longer shell casing. My M&P 15-22 will shoot the Stingers according to the manual.

Good luck with purchase. I think you will enjoy the SR22.