RE: 1940 winchester mdl 70
The gun should be fine. Some folks would gladly pay 600.00 for about any pre 64 Model 70. I ain't one of them but you should be able to come up fine on that deal even if you decide you don't like it. If you are hunting in North America it should handle all game animals you would find. If you are buying it partly as an investment, I would say go ahead. If its just for hunting, you could do better money wise.