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Rifles, Reloading, Optics, Equipment
Reloading
nosler 7mm rem mag shoulder grows .022 after first firing, normal?
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<blockquote data-quote="MagnumManiac" data-source="post: 1476494" data-attributes="member: 10755"><p>Yes it is normal.</p><p>Belted mags headspace off the belt, so the head to shoulder length on factory ammo/cases aren't held to any close spec.</p><p>My 338's grow on average .016", as do my 264's, but my 300WM's grow between .020"-.026" on SAAMI chambers. On my A191 300WM chambers, the shoulder is held to .008" over unfired brass, this helps quadruple brass life.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 1476494, member: 10755"] Yes it is normal. Belted mags headspace off the belt, so the head to shoulder length on factory ammo/cases aren’t held to any close spec. My 338’s grow on average .016”, as do my 264’s, but my 300WM’s grow between .020”-.026” on SAAMI chambers. On my A191 300WM chambers, the shoulder is held to .008” over unfired brass, this helps quadruple brass life. Cheers. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
nosler 7mm rem mag shoulder grows .022 after first firing, normal?
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