I bought a Brown Whelen pre-64 Win 70 at a gun show. When I got home cartridges wouldn't feed. There were more problems than I wanted to deal with, I had the barrel set back and chambered for a 35 Whelen and the problem was resolved.
I cannot imagine taking a rifle hunting without testing it and the ammo at a rifle range. I do know people that only shoot one shot to see if the bullet lands where it did the year before and that's all they do. I think that's better than doing it with a rifel they never shot before though.
