Just so people are clear, the low (or no) powder CB rounds are completely different than what is labeled "subsonic" 22LR. Subsonic 22LR ammo uses a normal weight bullet and is close to full power 22LR ammo; not a toy round at all. The CB rounds use a lighter weight bullet and little or no powder.
Ksmirk, the only 60 grain 22LR round I'm familiar with is the Aguila brand SSS (super sniper subsonic; they named it). It uses a 22 short case with the much heavier (and longer) bullet to make a 22LR length round of ammo. 40 grains is the weight of a normal 22LR solid bullet and what is normally used in the ammo labeled subsonic.
All the subsonic label means is it should stay just below the speed of sound when fired from a rifle chambered for 22LR.
Ksmirk, the only 60 grain 22LR round I'm familiar with is the Aguila brand SSS (super sniper subsonic; they named it). It uses a 22 short case with the much heavier (and longer) bullet to make a 22LR length round of ammo. 40 grains is the weight of a normal 22LR solid bullet and what is normally used in the ammo labeled subsonic.
All the subsonic label means is it should stay just below the speed of sound when fired from a rifle chambered for 22LR.
