I have a bunch of 1/2 jackets for .38 and the CH dies for my swag-o-matic. can I swage them up and then draw them down to .355 for my 9mm. I know feeding 1/2 jakets in autos has a history but I don't know if it worth a try. I can fashion a lee style sizer or buy a lee push through sizer. I would think that the force to go down .002 would not be to great for a rockchucker press? maybe?? possibly use a lyman sizing die?
Is this a silly idea? I thought about a reverse paper patch. wrap the 1/2 jacket and lead pill in paper swag it in the 38 die and then remove the paper .... that should leave me with a .355 or there abouts, if I get my paper right. Any ideas or comments? JB