This is one of the more interesting rimfire rifles Remington produced. Firing short long or long-rifle ammo mixed in the tube... it has a floating chamber much like that of the Colt Ace pistol to create sufficient recoil to operate the mechanism.
I just recently landed one in pretty nice condition. They are out there, and available but prices are on the rise. Thank you Joe Biden for the out of control inflation. Our dollar is depreciated daily by this administration. Contact me if you have one and need help