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Rifles, Reloading, Optics, Equipment
Reloading
7mmAM Case Forming
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<blockquote data-quote="Fiftydriver" data-source="post: 126481" data-attributes="member: 10"><p>TMR,</p><p></p><p>I would recommend that if you want to start forming cases thats fine but I would only neck them down so that the neck diameter is around 0.330" or so and stop there until you get the rifle.</p><p></p><p>The reason is because when you do the final neck sizing to bring the case neck down to 7mm you will want the rifle there so that you can check the cases in your chamber to be sure you have the slight crush fit that you will want to control any case head stretching upon fireforming.</p><p></p><p>If you size them all the way down now it is possible that you will not have this crush fit to control the case during forming.</p><p></p><p>Maintain the shoulder angle down to that point best you can and then I would hold up for the rifle to get there.</p><p></p><p>Good Shooting!!</p><p></p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 126481, member: 10"] TMR, I would recommend that if you want to start forming cases thats fine but I would only neck them down so that the neck diameter is around 0.330" or so and stop there until you get the rifle. The reason is because when you do the final neck sizing to bring the case neck down to 7mm you will want the rifle there so that you can check the cases in your chamber to be sure you have the slight crush fit that you will want to control any case head stretching upon fireforming. If you size them all the way down now it is possible that you will not have this crush fit to control the case during forming. Maintain the shoulder angle down to that point best you can and then I would hold up for the rifle to get there. Good Shooting!! Kirby Allen(50) [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
7mmAM Case Forming
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