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Rifles, Reloading, Optics, Equipment
Reloading
Cooper rifle won't chamber twice fired brass
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<blockquote data-quote="25WSM" data-source="post: 1865803" data-attributes="member: 38048"><p>Once again if his gun fires factory brass and once reloaded brass his chamber is not to small. And head space guages only measure the length of the chamber not anything to do with diameter. Headspace guages are actually way skinnier than a cartridge case. And a belted magnum headspace guage is only about an inch long. Before a reamer would get too small to make a proper size chamber it would be too dull to cut. I would say it's an out of spec die before I would blame the gun. When I used to make Chambers at perfect 0 head space about 1 in 4 dies needed some of the bottom taken off to get sufficient shoulder bump. Dies go through more steps to make than cutting a chamber. Dies are cut and then heat treated and then polished. Metal can change dimensions during heat treating. Barrels are heat treated before chambered. The advise of trying a small base die is sound. But I have never seen a bolt action rifle need one.</p><p>Even with all the match Chambers I cut I've never needed a small base die for any of the rifles I've built. I have had several dies that were bad over the yrs. They were all replaced no questions asked.</p><p>Shep</p></blockquote><p></p>
[QUOTE="25WSM, post: 1865803, member: 38048"] Once again if his gun fires factory brass and once reloaded brass his chamber is not to small. And head space guages only measure the length of the chamber not anything to do with diameter. Headspace guages are actually way skinnier than a cartridge case. And a belted magnum headspace guage is only about an inch long. Before a reamer would get too small to make a proper size chamber it would be too dull to cut. I would say it's an out of spec die before I would blame the gun. When I used to make Chambers at perfect 0 head space about 1 in 4 dies needed some of the bottom taken off to get sufficient shoulder bump. Dies go through more steps to make than cutting a chamber. Dies are cut and then heat treated and then polished. Metal can change dimensions during heat treating. Barrels are heat treated before chambered. The advise of trying a small base die is sound. But I have never seen a bolt action rifle need one. Even with all the match Chambers I cut I've never needed a small base die for any of the rifles I've built. I have had several dies that were bad over the yrs. They were all replaced no questions asked. Shep [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Cooper rifle won't chamber twice fired brass
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