That is not a serial no of a Remington 1911A1 they stopped in 1945 with 2465139.
1943
your Remington rand was made in 1917.
That should be a 1911A1, made in 1943.
I just don't think that's a Remington made 1911A1 Serial no, are you sure it's no mixed parts? May be Colt, 1924................
I thought that would be in the end of the serial range of Ithaca but 1944.
The C prefix dates your Remington model 700 to the year 1982.
Check the date code stamped on the barrel. Look for the manufactured date link on the Remington Society of America for details.
You have not provided enough information. Remington used/uses a date code, which is different for various models. A lot of this information is available on the web, but not from Remington.
armscollectors.com Remington's are date code stamped from 1921 details on Remington Society of America.
Check the barrel code stamps. The details are on the Remington Society of America on the Date of Manufacture link.
Since 1921 Remington has date stamped the barrel you can find the details/table on the Remington Society of America under the Manufactured Date link.