midwayusa.com product #698420 $20 + shipping phone # 1-800-243-3220
Brownells Montezuma, Iowa
Google Remington scoremaster model 511. Several websites have information on this .22 firearm.
Brownell's Montezuma, Iowa for around $15
Try e-gunparts.com
50-250 USD
Brownells Montezuma, Iowa
brownells has magazines for around ten bucks
The Remington 511, introduced in 1948, is generally considered an early model in the context of Remington's line of rifles. By 1951, it was still in the early production phase, as it remained in production until 1962. Therefore, the 1951 model retains characteristics of the early design and manufacturing techniques of the time.
check the date code stamped on the barrel. Remington Society of America, Manufactured Date link has the details.
Means it was made in February 1942. See related links.
I bought a Remington 511-X (1964) this week at a pawn shop. I paid $175. There was a copy of a gun Blue Book on the counter, maybe not the latest edition, but it listed the 5411-X at about $175 for 80% finish, IIRC.
The manufacture date on the gun itself is WTT. The W indicates the month of August and the TT indicates the year of 1948. Hence August 1948 is the date your model 511 was born.