Belted mag caliber & chamber support ?

AR15KittyKat

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Full Member
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Jul 11, 2007
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TX
Never owned a belted magnum, but thinking of getting a 300WM, does the barrels's chamber support up to & stops at the belt of the round, or does the chamber actually supports the whole belt also?
 

bigwheeler

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Oct 18, 2008
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montana
Re: Belted mag caliber & chamber support ?

The belt but obviously not the rim and extractor grove, which is never supported
as they are both in the primer pocket surround.
 

coug

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Jun 3, 2011
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Oklahoma
Re: Belted mag caliber & chamber support ?

The belt is where head space is set so the belt will be supported all the way around the chamber.