Aguila Super Colibri .22 CB Cap

A: In my Ruger MKIV these do not cycle and you have to manually work the slide after each shot. For reliable function in a semi-auto 22 supersonic is almost always the better choice, not much point in subsonic for most purposes besides getting rid of the sonic boom when using a suppressor. That being said, if you are shooting suppressed I have had good luck getting CCI Quiet-22 to cycle.

A: Orin, only a revolver and not reliably in a semi-auto sir due to a very low powder charge. Standard and hi velocity CCI 22lr ammunition is the standard by which 22lr is judged for reliability. Cheers and stay safe!

A: THE STRONG SILENT TYPE. The Super Colibrí was made for hunting and target shooting. Ultra-quiet, it offers higher velocity and energy than the standard Colibrí for when that little extra punch is needed. It's designed for bolt-action or revolver platforms.

A: Orin, These rounds will not cycle a semi auto. Will work in a revolver High velocity 22 lr ammo is best in a semi auto pistol. These round work best in a bolt action or single shot 22 lr rifle or revolvers.