I actually own one of these rifles in 300 Savage. It has been in my family since it was new. Has a Lyman rear sight on it that I haven't spent much time trying to figure out. There seems to be readily available factory ammo for it. I haven't shot in years, but it used to shoot very well if I did my part.
I contacted Remington a while back to find out when it was manufactured.
I think(can't remember exactly) they said in the 30's.
I now live in Montana and hunt whitetail in pasture lands and have thought of working up some loads for it as it would be safer than a 270 win.
My family routinely practiced with it at 200 yds, and I suppose it would do out to 300 yds.
You can call Remington and find out the manufacture date.
Here is a link to the history of the gun
http://www.remington.com/library/his...e/model_81.asp