Sizing 6mm BRA back to 6mm BR

Tree

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Minuteman
Jan 28, 2018
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MN (Frozen tundra)
I am moving back to 6mm BR after shooting 6BRA and have some brass left. Is there any issue sizing back to BR? I could find any identified issues online but thought I would ask here as well.
 
Anneal it, lube the crap out of it, and yank the handle as hard as you can. It probably still won't work. I agree with 47guy, just sell it or keep it and buy new.