Any revolver marked "22 long rifle" will safely shoot longs, shorts, cb caps, etc. In a semi-auto or bolt so marked you may have feeding difficulties, but it would also be safe. Its when you try to shoot long rifles in a gun chambered for shorts, or 22 magnums that you have problems. Sort of like shooting 38 specials in a longer 357 magnum chamber. I use CB Caps in my model 17 all the time when its to cold out, and I feel like practicing in my "garage range". Just run a brush thru the chambers when you are done so a fouling ring from the shorter shell doesn't make chambering long rifles more difficult.
Larry