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Hunting
Long Range Hunting & Shooting
7mm accuracy problems
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<blockquote data-quote="Fiftydriver" data-source="post: 847874" data-attributes="member: 10"><p>One thing you may want to check is that the belt on the case is not contacting the chamber. I have found that Nosler brass can have pretty thick belts. The variation in belt thickness from brand to brand and even lot to lot is hard to believe at times and it can cause serious accuracy problems if the belt is contacting the chamber in any way. Better to have the chamber a bit looser then touching the belt. </p><p> </p><p>Sometimes it does not even feel like its touching but it is, smoking the belt and chambering usually will show contact.</p><p> </p><p>It is not uncommon to have the chamber set to tight for a belted magnum. One reason I do not care for them, you CAN NOT set the chamber to zero headspace just because of the variation in headspace between brands and lots of belted magnum brass.</p><p> </p><p>Maybe something to check, if its contacting the chamber, you WILL get accuracy problems.</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 847874, member: 10"] One thing you may want to check is that the belt on the case is not contacting the chamber. I have found that Nosler brass can have pretty thick belts. The variation in belt thickness from brand to brand and even lot to lot is hard to believe at times and it can cause serious accuracy problems if the belt is contacting the chamber in any way. Better to have the chamber a bit looser then touching the belt. Sometimes it does not even feel like its touching but it is, smoking the belt and chambering usually will show contact. It is not uncommon to have the chamber set to tight for a belted magnum. One reason I do not care for them, you CAN NOT set the chamber to zero headspace just because of the variation in headspace between brands and lots of belted magnum brass. Maybe something to check, if its contacting the chamber, you WILL get accuracy problems. [/QUOTE]
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