My Grandfather gave me his old rifle. It is a pre 64 model 70 in 264 win mag. Thank you grandpa! Here is my problem. The rifle hadn't been cleaned since 1963 and has seen copious amounts of s#@t mix hand loads from who knows who. The barrel is terribly pitted and has just about 0 rifeling left for the fist six inches of barrel. This thing is in bad shape. My question is would this gun be worth anything as is. Not to sell but if I were to put a barrel on it so I could at least use it, I am afraid I would hurt the value. If I did put a barrel on it do I need a 1 in 8 twist to shoot 140 grainers or is a 264 fast enough to to use a 1 in 9 twist with 140s. I would really like to use this rifle but it just won't shoot anymore so if rebarreling is not a bad idea and will get it out of the closet I would really like to know.
Personally, I would clean all the "junk" out of the barrel first. You might be surprised when the rifling reappears. Then I would shoot it and see if it still is accurate. If it isn't, then you must decide if you want it as a collectors piece or if you want a shooter. It would certainly make a fine shooting rifle with the right barrel. As for twist, I dont know for sure. Good luck.