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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Internal ballistics frustration.
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<blockquote data-quote="Buffalobob" data-source="post: 132595" data-attributes="member: 8"><p>Take a fired and a sized case and lay them on their sides on a flat table. Roll each and see if either is lopsided. Different test for same issue - take two fired and set them on a table on their bases so the bases touch. slowly rotate one and see if the distance between the shoulders changes. Do the same with two sized cases.</p><p></p><p>Now then if you wish to be more precise, set up your runout gauge to check for the runout of the base.</p><p></p><p>All of this is to check whether your chamber is aligned and your bolt face and lugs are bearing properly. If they are not then you wind up with a gun that fires new brass fine but then your dies cannot get the bases squared up and you wind up with a goofy headspace/ misalignment problem. </p><p></p><p>Your problem sounds similar ( but not exactly) to the problem I experience with the one lug Savage 340 and high pressure loads. Bolt flexes and I get warped bases on the brass.</p></blockquote><p></p>
[QUOTE="Buffalobob, post: 132595, member: 8"] Take a fired and a sized case and lay them on their sides on a flat table. Roll each and see if either is lopsided. Different test for same issue - take two fired and set them on a table on their bases so the bases touch. slowly rotate one and see if the distance between the shoulders changes. Do the same with two sized cases. Now then if you wish to be more precise, set up your runout gauge to check for the runout of the base. All of this is to check whether your chamber is aligned and your bolt face and lugs are bearing properly. If they are not then you wind up with a gun that fires new brass fine but then your dies cannot get the bases squared up and you wind up with a goofy headspace/ misalignment problem. Your problem sounds similar ( but not exactly) to the problem I experience with the one lug Savage 340 and high pressure loads. Bolt flexes and I get warped bases on the brass. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Internal ballistics frustration.
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