The only case conversion I've ever done was reforming surplus blanks (x 63) into 45 acp shotshell brass. It is a really simple one step operation involving running a blank up into the trim die on an extended shell holder and then cutting it off with a hacksaw and deburring it.
(This lets me get a military primer live & crimped in place.)
They work ok but will not cycle it 100%. Considering they cost less than the store bought Speers, they work great.
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