Mine is one of the last ones out of the barn vintage April 1944. I bought this rifle for $1700 four yrs ago and considered it an excellent find after passing one up for $100 back in 1968!!!! Stock is an original scant grip and all parts are Remington with no evidence of arsenal re-work. It came with with the original Redfield base, but I needed to procure both scope and rings for it. I got both an original re-parkerized military Weaver with 3/4 in rings (mucho dinero) and a Lyman Alaskan with 7/8 in rings.
The barrel is a 2 groove dated 1-44 with an excellent bore and minimal wear. Throat measures .302 and muzzle .30075. I keep the Alaskan on it for shooting as it is a much superior scope than the Weaver. The rifle is a fine shooter producing avg 1.4 inch 100 yd groups with my best handloads. I found the fit of the front ring to base loose, so inserted a piece of brass shimstock below the ring to tighten it up.
Sometimes these will pop up and you need to pounce on them when they do. 3 yrs ago I got an authenticated M1C Garand sniper rifle in a local trade after looking for one for many yrs. A collector friend in the US was able to supply me with both an original scope mount and bracket for this one (also needed a brass shim to tighten up the fit of these) and I was able to procure an original cheekpiece, Hart flash hider, Lyman Alaskan scope, and a rubber eyepiece for the scope to bring it back to original configuration.