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Rifles, Reloading, Optics, Equipment
Reloading
Video On Bump sizing cases.
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<blockquote data-quote="J E Custom" data-source="post: 1845540" data-attributes="member: 2736"><p>With just the bolt in the receiver it is normal to have .007 to .010 thousandths slack forward and backwards. Some have even more than that depending on how much bolt relief was built in. This is still OK as long as it is not caused by bolt lug set back from hot loads.</p><p></p><p>When you place a go gauge in the chamber with no firing pin assembly and ejector, the centerline movement should be held to .003 to .004 maximum. Best is .0005 to .0015 in my opinion. After fire forming, it should be .000 and adjusted to what you prefer during sizing. The amount of head space needs to be based on the type of firearm and it's use. When possible, I prefer .000 to .0005 to hold the bolt stationary during firing (No Slack).</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1845540, member: 2736"] With just the bolt in the receiver it is normal to have .007 to .010 thousandths slack forward and backwards. Some have even more than that depending on how much bolt relief was built in. This is still OK as long as it is not caused by bolt lug set back from hot loads. When you place a go gauge in the chamber with no firing pin assembly and ejector, the centerline movement should be held to .003 to .004 maximum. Best is .0005 to .0015 in my opinion. After fire forming, it should be .000 and adjusted to what you prefer during sizing. The amount of head space needs to be based on the type of firearm and it's use. When possible, I prefer .000 to .0005 to hold the bolt stationary during firing (No Slack). J E CUSTOM [/QUOTE]
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Video On Bump sizing cases.
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