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Rifles, Reloading, Optics, Equipment
Reloading
Shoulder Bump
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<blockquote data-quote="Hondo64d" data-source="post: 1802057" data-attributes="member: 1390"><p>I would resize the brass so that it measures .001 to .002" less than the brass you normally use in that chamber and then make sure they chamber ok.</p><p></p><p>If they won't chamber with a headspace measurement .001 to .002" less than brass fired in your chamber, then it is possible your die is not sizing the case small enough immediately in front of the belt to chamber in your rifle. Should that happen, you might squeeze it down by screwing your die down farther but that will increase the headspace and weaken the brass further on firing in your chamber. Better solution would be the Willis Collet die or a small base die if anyone makes one for a 7 Mag. Another option that I have used was to have the top of a die cut off so it doesn't push the shoulder back at all but sizes the body above the belt.</p><p></p><p>Were it me, rather than go to the additional expense of a Willis die or modifying a conventional FL die, I'd size them to .001 to .002" shorter than brass fired in your chamber and if they don't chamber well, trash them or sell them.</p><p></p><p>If you absolutely want to use this brass I have a Willis Collet die I'd let go very reasonably, as I'm not shooting any belted mags any more.</p><p></p><p>John</p></blockquote><p></p>
[QUOTE="Hondo64d, post: 1802057, member: 1390"] I would resize the brass so that it measures .001 to .002” less than the brass you normally use in that chamber and then make sure they chamber ok. If they won’t chamber with a headspace measurement .001 to .002” less than brass fired in your chamber, then it is possible your die is not sizing the case small enough immediately in front of the belt to chamber in your rifle. Should that happen, you might squeeze it down by screwing your die down farther but that will increase the headspace and weaken the brass further on firing in your chamber. Better solution would be the Willis Collet die or a small base die if anyone makes one for a 7 Mag. Another option that I have used was to have the top of a die cut off so it doesn’t push the shoulder back at all but sizes the body above the belt. Were it me, rather than go to the additional expense of a Willis die or modifying a conventional FL die, I’d size them to .001 to .002” shorter than brass fired in your chamber and if they don’t chamber well, trash them or sell them. If you absolutely want to use this brass I have a Willis Collet die I’d let go very reasonably, as I’m not shooting any belted mags any more. John [/QUOTE]
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Shoulder Bump
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