I realize that I may lose my last fingernail hold on reality and can kiss anything like free time goodbye with this question but...

My stepfather has a .401 Winchester Self Loading, I believe it is a model 1910, that he can't find ammo for. Super cool rifle in excellent condition that his dad got around WWII. I've been poking around and it looks like brass can be reformed for this out of 7.62 X 39 brass. He has about 40 original cartridges but I told him not to shoot them they seem to have value as a collectors item.

I am looking at books about doing this sort of reforming. Any suggestions?

Like handloading standard cases wasn't enough of a time suck:P. Someday they'll just find me slumped over my press.

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Trucks and guns.