My 5” Ruger Mk2 shoots them LOUD. You need barrel length to have quiet. BTW, CB caps generally do not function well in semi autos. In my kids 1022, I load up the .22 CCI ‘Long’ CB caps. You have to pull the slide back for each shot but they feed nice.
Mostly I use my 1938 made Sears ranger bolt action rifle. They also feed well in my kids Henry lever gun.
Darn. Was afraid of that. Haven’t even fired the .22 revolver yet (have been too busy with elderly / ill parents.) So I didn’t have anything to compare.
I do have a Crosman 1322 pellet pistol, but even at 10 pumps, it doesn’t really have enough power to reliably kill quickly, say, a large opossum, without a perfect shot. (I’ve actually surprised myself with the accuracy of the 1322, but a perfect or even “very good” shot I’m not!)
Thanks for the info., though!