WB
I may be full of prunes but I find that
Friday, December 18, 2020, 11:14

new, more fresh, .22 RF will usually blow out like that and shoot OK for emergency purposes. However older ammo or that stored in say...a glove box for 2-3 years in all sorts of temp variations, will usually split to some degree.

With most modern .22 revolvers they have "recessed" rim cylinders. The RF round fits flush with the back of the cylinder. This would make it very unlikely that ANY gas could slip past the seated rim and be directed toward the recoil shield and bystanders. I have blasted myself with cylinder wash holding beside a tree limb or back blast off of a bench rest shooting revolvers. Pre-war Colts and maybe others did sport "non-Recessed" RF cylinders and in case of a web rupture "could" in theory have a side gas release. None of them should be re-chambered to .22 WMR but MANY were found in .22 WRF which is the same diameter as the much higher pressure .22 Magnum RF. Just be aware and protect yourself and any onlookers.

You probably might want to move over a lane or two at the range from me or Jim. LOL