I use the .22CB shorts in my 597 all the time, I love them!
Canadian Tire does not carry the CB Longs, (not that I have seen) so I have been using the shorts for a long time now. No, they do not cycle the action, and they do not get picked up from the mag too well. I find if I load 6 or 8 in the mag, I can manually cycle the action, and it normally chambers a round. Of course, most shots stove-pipe, but since you have to cycle the action manually, it's no big deal.
The accuracy is not the greatest, but they sure are quiet. I used to use them for plinking in my yard (lived in the country, it was legal, just did not want to tick off the neighbours). A lot more powerful than my air-rifle, and as quiet!
Mike_R