Converting a 12.7x44R (CF) to .50 Government (General)

by Orin @, Greensboro, NC USA, Sunday, June 21, 2015, 11:24 (1882 days ago) @ Mårten Wigardt

Hi Mårten,

Thanks for the update and glad to hear that the 50-70 cases worked. A friend had sent me a fired case and it wouldn't chamber in either of mine and I think that's because it was fired in a rifle chambered in 50-70 which is a little loser chamber.

I found 85 cases on one of the for sale boards along with a set of Lyman dies and they should be here this week. It was a gamble but if they wouldn't work then I was going to rent a 50-70 chamber reamer and re-chamber one of mine that's a "sporter" and really doesn't have any collector value. Like you, I didn't want to go through having to convert brass to get it to work.

I have a collet chuck on my lathe and a .5 inch (12.7mm) collet should work to hold the brass and reducing the rim will be simple with the lathe.

What mold are you using for your bullets?


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