Hi,

I am starting a machine class and would like to make some mandrels for the lathe for the following actions Mauser 98 L.R. & S.R., Winchester m70. I was wondering if any one would happen to have a blueprint/s for these parts? Any help would be greatly appreciated.

Chris

I'm sure the Colorado School of Trades has some dimensions but, just measure the bolt bores in several '98's and Model 70's. Then turn the mandrels so that they're a slip fit into the bore. You have to drill and tap a hole 90 deg. to the axis of the mandrel so that you can clamp a piece of flat stock to the bottom of the magazine opening to keep the the action from slipping while machining it. Make them about 16" long with centered holes in each end and the outsides turned true with the center drilled holes in the ends. I'm sure you can vizualize what I'm saying if I don't make it precisely clear.