If you had it in your power to bring back one of the old (or not so old) calibers which is now out of favor with the buying public, which would you choose and which gun would you couple it with?

I think I'd choose the 348 Winchester and put it in a Savage 99 with a light maple stock..... top it off with a Weaver 4x. That would make for a nice "eastern" deer rifle out to about 200 yards.