I bought my first rifle, a pre-war Model 70 .30-06 in 1964 when I was fifteen. It had a bore somewhat speckled, probably from shooting corrosive ammo and not being cleaned properly. It nevertheless shot fairly well, but in 1965 I had it rebarreled with a Douglas 26" heavy sporter barrel for the then popular .25-06 wildcat. It was the only hunting rifle I had for about ten years and it was fired a good bit. I continue to shoot it occasionally. After at least a couple of thousand rounds and some throat wear, it's still accurate.