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Rifles, Reloading, Optics, Equipment
Gunsmithing
Headspace for 300 ultra with 35deg?
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<blockquote data-quote="J E Custom" data-source="post: 1791998" data-attributes="member: 2736"><p>The simple way to set the head space is to use the go gauge that fits the chamber. </p><p>Even the chamber can be a little off so use the tool designed for the chamber and set the head space off it to .001 to .003 and after fire forming you will know where the actual datum line is if you want to "Bump the shoulder". Shoulder angle may move the datum line but head space needs to be set off the proper go gauge. As mentioned for AI chambers they are normally set with .004 to .006 crush to hold the case in place and minimize case stretch.</p><p></p><p>Just My opinion</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1791998, member: 2736"] The simple way to set the head space is to use the go gauge that fits the chamber. Even the chamber can be a little off so use the tool designed for the chamber and set the head space off it to .001 to .003 and after fire forming you will know where the actual datum line is if you want to "Bump the shoulder". Shoulder angle may move the datum line but head space needs to be set off the proper go gauge. As mentioned for AI chambers they are normally set with .004 to .006 crush to hold the case in place and minimize case stretch. Just My opinion J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Headspace for 300 ultra with 35deg?
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