223 to 257 bolt face

User00003

Well-Known Member
does anyone here know if a microlength mauser action such as the old brno .223 or .222's that accept 9.6mm case bases can be reamed out to accept the 12mm case base on a .257R?

also, would this be safe given the significant difference between a .257 and a .223!? I just feel I read somewhere that a .223 action could be reamed out to .257, but that may of course only have been a standard short or long action, not a microaction.

any takers?
 
If i am correct mauser bolts do not have a recessed bolt face so a change of case of diametre should only a matter of swapping to the appropriate claw extractor, dont quote me on this, maybe someone with a more comprehensive knowledge of mauser actions could explain.

Ian.
 
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