headspace

243winxb

Well-Known Member
Joined
Sep 9, 2016
Messages
615
Location
USA
Maximum chamber, head to datum is 1.2503" The minimun cartridge is 1.2364"
If the rifle has a maximum chamber & factory ammo is at the minimun, head clearance will be .0139" Brass would have case head separations under these conditions. May take more then 1 firing.
 

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