Thanks for reaching out Greg! Quite the treasure you've got there. I expect this ammo would function correctly in your SA-22, but I personally believe CCI makes the best 22 LR for a semi-auto. If I could recommend only one cartridge for your rifle, it would have to be CCI Mini-Mag 40gr CPRN. This ammo generates sufficient pressure to cycle any semi-auto, its round nose bullets feed smooth as syrup, and those bullets' copper plating conserve accuracy by warding off barrel leading: luckygunner.com/22-lr-40-grain-cprn-cci-mini-mag-1000-rounds