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Rifles, Reloading, Optics, Equipment
Reloading
Help getting sized 1x fired brass to fit in chamber
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<blockquote data-quote="Dean2" data-source="post: 412428" data-attributes="member: 26077"><p>Especially on belted magnums, there can be quite a difference in how thick the belt is from one make of case to another. A thin belted case will have an expansion area too low for the die to reach. In addition, if you have a slightly short chamber the die may not screw down far enough to bump the shoulder back. Redding sells a set of shaved shell holders just for this purpose. You can order them from Sinclairs, they get thinner .001 at a time.</p><p> </p><p>Once you have them full length sized to fit, try just neck sizing them from then on, without bumping the shoulder. I find I can get quite a few more reloads per case, better accuracy as they now headspace on the shoulder instead of the belt, and they don't bind at all when feeding. (I only bump the shoulder back .001 if the rounds start to get tight when chambering them).</p><p> </p><p>Sounds odd but give it a try, I found it accidentally when I was neck turning and neck sizing trying to get better accrracy out of a 300 Win Mag. I now start with new brass for all my belted mags, neck size only once the case has been fired in the gun it will be used in and I never swap brass between guns. Good luck.</p></blockquote><p></p>
[QUOTE="Dean2, post: 412428, member: 26077"] Especially on belted magnums, there can be quite a difference in how thick the belt is from one make of case to another. A thin belted case will have an expansion area too low for the die to reach. In addition, if you have a slightly short chamber the die may not screw down far enough to bump the shoulder back. Redding sells a set of shaved shell holders just for this purpose. You can order them from Sinclairs, they get thinner .001 at a time. Once you have them full length sized to fit, try just neck sizing them from then on, without bumping the shoulder. I find I can get quite a few more reloads per case, better accuracy as they now headspace on the shoulder instead of the belt, and they don't bind at all when feeding. (I only bump the shoulder back .001 if the rounds start to get tight when chambering them). Sounds odd but give it a try, I found it accidentally when I was neck turning and neck sizing trying to get better accrracy out of a 300 Win Mag. I now start with new brass for all my belted mags, neck size only once the case has been fired in the gun it will be used in and I never swap brass between guns. Good luck. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Help getting sized 1x fired brass to fit in chamber
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