check with the colt factory: 1-800-962-2658
try egunparts
Online auctions, gun shops, gun show, want ad.
.22 Long Rifle is a longer cartridge.
You get and NFA Class III permit and buy a suppressor.
22 bullets come in short, standard and long. Your rifle is telling you that you have to purchase .22 long shell bullets.
The length- short, then long, then long rifle- also the power. Long rifle usually has a heavier bullet.
It takes either .22 long rifle, or .22 short. It's marked on the barrel.
22 short, 22 long, or 22 long rifle. When I was a kid we would buy shorts to save a dime per box, longs for general use, and long rifle hollow point if we were going after something larger, like coyotes. Now it's hard to find short or long ammunition anyplace, and if you can find it, it costs more than long rifle.
22 shorts can be fired in a pump or bolt action rifle chambered for long rifle cartridges but not in most automatics.
the 22 long rifle holds 11 cartridges
Try on line auctions and egunparts.