mashburn
posted this
25 February 2019
Jim,
You have the same problem. The distance between the face of the bolt and the back of the barrel would be too far a distance for the bolt to headspace the front of the cartridge rim against the back of the barrel. Remember rimless cases have the head of the cartridge sticking out of the chamber. Rimmed cases have the front of the rim seated against the back of the camber or even recessed in most cases. That creates a distance to over come. You would have to build up the front of the bolt if you did something like this with a rimmed case. I don't want to put that much heat on a heat treated bolt head. In changing the front of the bolt for a smaller cartridge like a mauser or etc. I have soft soldered the right size washer on the bolt face and machined the washer out to fit the case head and remove what was needed to keep the control feed functioning .Soft solder heat shouldn't bother the temper of the bolt face. But again it could be done my setting the barrel back in the receiver to take up this headspace problem. Claw type actions don't present a very big problem to convert to rimmed in most cases. Hey, it's beginning to sound like the extracter problem is easy compared to the rest of this project. Again, why do we think of this kind of stuff. OH, I know. It's fun.
You mentioned have a .358 barrel.. By any chance, did it come off a model 88 Winchester. I would like to have one I gotta get off here, when I get started talking gun projects I can't shut up. Especially after I've had a pain pill for my old aching carcus.
GOSH, it sure is fun talking shop with you guys. When you think about it we are the few that know how to do things in the modern world. In todays world if you can saw out plywood silhouttes and paint them, you are considered to be a craftsman. I raised my boys to do the same and am starting some of my grand kids.
Mashburn.