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Rifles, Reloading, Optics, Equipment
Reloading
Case head squaring
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<blockquote data-quote="jb1000br" data-source="post: 59697" data-attributes="member: 1459"><p>[ QUOTE ]</p><p>Yes, they all measure .500" so it wouldn't work for standard magnums or oversized magnums unless you had a machinist make a cutter head that was .050" larger, and that is exactly what 7MMRHB and I are looking into right now for the .338 Lapua improved. It shouldn't be hard to do.</p><p> As for the concave heads and primer pocket tightness, it might very well be true, but 7MMRHB is running a max load of 36.2 grains of AA2230 and a 55 grain bullet and has loaded his cases dozens of times. His pockets are still tight after having the case heads squared. His load clocks at 3925 fps, so you know there is pressure there!</p><p> P.S. I would also like to mention that case head squaring done on a Wilson trimmer is very fast. After I got the hang of it, I did 100 brass in 1 hour and 20 minutes and that was with measuring a few and trimming also. That's what's great about the Wilson, you can square and trim very quickly. All you have to do is flip the case holder around! </p><p></p><p>[/ QUOTE ]</p><p></p><p>So do you square the case head to a random point, then turn it around and trim it to the SET depth?</p><p></p><p>If the trimmer is SET, and you cut to the SET, you cant turn the case around and keep trimming...it is already to the SET length. Im confuzzled.</p><p></p><p>JB /ubbthreads/images/graemlins/confused.gif</p></blockquote><p></p>
[QUOTE="jb1000br, post: 59697, member: 1459"] [ QUOTE ] Yes, they all measure .500" so it wouldn't work for standard magnums or oversized magnums unless you had a machinist make a cutter head that was .050" larger, and that is exactly what 7MMRHB and I are looking into right now for the .338 Lapua improved. It shouldn't be hard to do. As for the concave heads and primer pocket tightness, it might very well be true, but 7MMRHB is running a max load of 36.2 grains of AA2230 and a 55 grain bullet and has loaded his cases dozens of times. His pockets are still tight after having the case heads squared. His load clocks at 3925 fps, so you know there is pressure there! P.S. I would also like to mention that case head squaring done on a Wilson trimmer is very fast. After I got the hang of it, I did 100 brass in 1 hour and 20 minutes and that was with measuring a few and trimming also. That's what's great about the Wilson, you can square and trim very quickly. All you have to do is flip the case holder around! [/ QUOTE ] So do you square the case head to a random point, then turn it around and trim it to the SET depth? If the trimmer is SET, and you cut to the SET, you cant turn the case around and keep trimming...it is already to the SET length. Im confuzzled. JB [img]/ubbthreads/images/graemlins/confused.gif[/img] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Case head squaring
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