Working on my Mauser tactical project I'm settled on (strangely enough) 260 Remington as its ballistics look like an improved 6.5x55 swede, but easier to load and a little newer. The problem arises when all the barrels I find are both light barrels for hunting rifles, and require threading.

I've got a barrel vice, I've got a set of barrel wrenches, and action blocks for my project, but I dont have something to thread the steel with. Can anyone hook me up with a source of barrels that dont need to be altered any further before installation?