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Rifles, Reloading, Optics, Equipment
Reloading
nosler 7mm rem mag shoulder grows .022 after first firing, normal?
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<blockquote data-quote="J E Custom" data-source="post: 1476503" data-attributes="member: 2736"><p>Ditto. </p><p>Belted cases are sized much smaller than shoulder cases the first time so they can be fired in a dirty chamber. If you full length size them, they will increase in length a great deal each time. </p><p></p><p>If you do a minimum sizing after fire forming (Just enough to chamber) you will be using the case like a shouldered case and growth will be held to a minimum.</p><p></p><p>Don't bump the shoulder at all until it becomes hard to chamber then only bump just enough to chamber and no more. I use neck dies for this and a bump die when it becomes tight or hard to chamber</p><p></p><p>Once a belted case is fired, it becomes a shouldered case and can be loaded like one unless you full length size it. I recommend sizing to fit the chamber, not the belt after it has been fire formed unless you are hunting dangerous game where brass has to take a back seat to safety and chambering can mean life or death.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1476503, member: 2736"] Ditto. Belted cases are sized much smaller than shoulder cases the first time so they can be fired in a dirty chamber. If you full length size them, they will increase in length a great deal each time. If you do a minimum sizing after fire forming (Just enough to chamber) you will be using the case like a shouldered case and growth will be held to a minimum. Don't bump the shoulder at all until it becomes hard to chamber then only bump just enough to chamber and no more. I use neck dies for this and a bump die when it becomes tight or hard to chamber Once a belted case is fired, it becomes a shouldered case and can be loaded like one unless you full length size it. I recommend sizing to fit the chamber, not the belt after it has been fire formed unless you are hunting dangerous game where brass has to take a back seat to safety and chambering can mean life or death. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
nosler 7mm rem mag shoulder grows .022 after first firing, normal?
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