10 MM or S&W .40

I am seriously contemplating sending my 610 cylinder off to be reamed to 10mm Mag dimensions. I would still be able to 10mm and possibly 40S&W out of it.

bob
 
Thanks for those references. I was not aware of the 10 in that article. My memory has me thinking that when the 10mm first came out it was being called a 10mm mag. Would not be the first time my memory failed me!
 
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