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Rifles, Reloading, Optics, Equipment
Gunsmithing
Excess headspace - Win M70 30-06 pre-64
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<blockquote data-quote="J E Custom" data-source="post: 1942720" data-attributes="member: 2736"><p>Head space should be between .0015 and .004 for best function and case life. safety wise you can go as high as .006 to .007 but the brass will suffer and case head separation is a distinct possibility.</p><p></p><p>If you use it for hunting, the best thing to do if it is less than .006 head space, is to do a minimum sizing when you reload. I don't recommend bumping the shoulder unless chambering is a problem.</p><p></p><p>The more you size, the shorter the case life and the higher the risk of case head separation.</p><p></p><p>You can buy a head space gauge for under $50.00 dollars and use added shims to find out what the actual head space is, or just buy a field gauge and if the bolt wont close on it you will be ok, if it does close on the field gauge, i would recommend correcting the head space so it falls within SAMME standards.</p><p></p><p>again, don't size anymore than necessary and you will be fine. shouldered cases will chamber with many firings with standard loading's.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1942720, member: 2736"] Head space should be between .0015 and .004 for best function and case life. safety wise you can go as high as .006 to .007 but the brass will suffer and case head separation is a distinct possibility. If you use it for hunting, the best thing to do if it is less than .006 head space, is to do a minimum sizing when you reload. I don't recommend bumping the shoulder unless chambering is a problem. The more you size, the shorter the case life and the higher the risk of case head separation. You can buy a head space gauge for under $50.00 dollars and use added shims to find out what the actual head space is, or just buy a field gauge and if the bolt wont close on it you will be ok, if it does close on the field gauge, i would recommend correcting the head space so it falls within SAMME standards. again, don't size anymore than necessary and you will be fine. shouldered cases will chamber with many firings with standard loading's. J E CUSTOM [/QUOTE]
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Excess headspace - Win M70 30-06 pre-64
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