44 Carbine...is what they were called. Made fron the late 60's till 85. I bought one that looks like brand spanking new off gunbroker for around $550... they ASK from that price on up but I dont think they sell for the inflated prices on gunbroker lately. Fun to shoot. Triggers suck. Stocks are notorious for cracking and it's impossible to find replacements. If it brakes you might as well toss it. Ruger basically wrote the rifle off and dose not make parts for it anymore...just about every part for the gun is obsolete. The gun was too expensive to manufacture and tool. Ruger wasn't making enough money on it so they discontinued it. The gun was designed to shoot 240 gr jacket ammo. Shooting cast will clog the gas tube so it won't function. Bought mine, shot it a couple times and bought a 77/44 which I like shooting better and is way more accurate. I'm shooting .6" groups at 100 yards in my 77/44 with cast Hollow points I casted, powder coated, and gas checked. The early deerstalkers are the ones everyone pays good money for. They were made in the 60's. I believe Ithaca was the company who sued them over the name so they were called 44 carbines after that. They look like twin to the 10/22. If you hate it I'll trade you out of it. I wouldn't be out hammering ammo through it or the gun will end up braking. I got the lecture from my buddy who is smith. He took it apart and cleaned it showing me the 50,000 pieces it's assembled with. It's a pretty little complicated build. I understood why it was discontinued after I watched my buddy dissemble and clean it. A lot of parts equaled a lot of time and money to produce these. Ruger claimed they lost money on parts and labor building the carbines.