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Rifles, Reloading, Optics, Equipment
Gunsmithing
Go / No go gauge???
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<blockquote data-quote="J E Custom" data-source="post: 167825" data-attributes="member: 2736"><p>KBB </p><p></p><p>The go gauge is the one to use.It is the S.A.A.M.I spec for the chamber.</p><p></p><p>I use the go gauge with shim stock .001'' thick to set head space.</p><p></p><p>I ream the chamber .001 to .002'' deep then when I make up the </p><p>barrel It ends up around .001'' or less.</p><p></p><p>To verify I place 1 small round shim on the bolt face and close</p><p>it on the go gauge.NOTE! Do not force the bolt closed!!!.</p><p></p><p>If it does close then I go to a .002'' shim and try again, If I did my part</p><p>it should not close. On belted cases I try for less than .001'' headspace.</p><p></p><p>On semi autos I go for .003'' headspace for better functioning.</p><p></p><p>I have found that some factory ammo will go even if the go gauge will not</p><p>so dont use the factory ammo as a go gauge.Unless you use small base</p><p>dies you will never get your reloads as small as the factory stuff. "Plus</p><p>when you test the ammo for fit be sure and remove the fireing pin"</p><p>to prevent having your whole day ruined.</p><p></p><p>The no go gauge tells you when you have to much head space.</p><p></p><p>I hope this helped</p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 167825, member: 2736"] KBB The go gauge is the one to use.It is the S.A.A.M.I spec for the chamber. I use the go gauge with shim stock .001'' thick to set head space. I ream the chamber .001 to .002'' deep then when I make up the barrel It ends up around .001'' or less. To verify I place 1 small round shim on the bolt face and close it on the go gauge.NOTE! Do not force the bolt closed!!!. If it does close then I go to a .002'' shim and try again, If I did my part it should not close. On belted cases I try for less than .001'' headspace. On semi autos I go for .003'' headspace for better functioning. I have found that some factory ammo will go even if the go gauge will not so dont use the factory ammo as a go gauge.Unless you use small base dies you will never get your reloads as small as the factory stuff. "Plus when you test the ammo for fit be sure and remove the fireing pin" to prevent having your whole day ruined. The no go gauge tells you when you have to much head space. I hope this helped J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Go / No go gauge???
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