Any tried super colibri .22 l/r?

They don't cycle in my semiauto 10/22

I shoot CCI .22 longs, but they're pretty much the same thing.

Will kill squirrels. Difficult to shoot at any kind of range though.

JJB,
I've not shot the Super Colibri, but I have shot most every other subsonic 22LR round available. In my guns, CCI "Quiet 22" offers the best combination of accuracy and reliability. While most subsonic rounds can be expeced to automatically cycle the action of a semi-auto, in my experience this is not the case w/ the I "super slow" rounds (Super Colibri, Quiet 22, 22 Short and CCI CB Long). Many of these rounds are much shorter than the usual 22LR; that can be a problem if one's shooting the 10/22 or 77/22. When such short rounds are shot in the rotary magazine, instead of feeding to the action, the rounds nosedive into the mag. W/ it's 20 gr bullet, I bet that would happen w/ the Super Colibri, as well. CCI Quiet 22 will feed from the Ruger rotary magazine.

I've used the Super Colibri, as others have said, they won't cycle most semi-auto pistols, much less a rifle.

I always have to manually cycle my Mark II when I use them.

LC