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Rifles, Reloading, Optics, Equipment
Reloading
Shoulder bump problem? Not far enough?
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<blockquote data-quote="SidecarFlip" data-source="post: 867182" data-attributes="member: 39764"><p>Considering the chamfer on most shellholders, probably 0.015-20 is doable. Keep in mind that, if they are case hardened, the case will only be about 0.007 deep so going past 0.007 will expose the softer material, if they are cased, again, like I said above, I've never given one the file test.</p><p> </p><p>The surface grinder was a Christmas present to myself about 10 years ago, back when I made big bucks and no, at 7500 pounds it won't fit down a chimmney....<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p> </p><p>In as much as I never load belted cases (and have to deal with the internal ridge), I grind the die base and adjust ram stroke accordingly using a headspace gage.</p><p> </p><p>If 0.006 works, 0.006 and 0.007 would be my target dimensions. Understand, the top face of the shellholder will be reduced, reducing the clearance the case head has in the milled slot on the shell holder. I'm preuming that you can insert a 0.006 feeler gage and still insert the shell in the shellholder with no difficulty?</p><p> </p><p>Shellholders as a rule are inherently sloppy vertically because the stress of sizing is entirely on the milled lip against the brass casehead.</p></blockquote><p></p>
[QUOTE="SidecarFlip, post: 867182, member: 39764"] Considering the chamfer on most shellholders, probably 0.015-20 is doable. Keep in mind that, if they are case hardened, the case will only be about 0.007 deep so going past 0.007 will expose the softer material, if they are cased, again, like I said above, I've never given one the file test. The surface grinder was a Christmas present to myself about 10 years ago, back when I made big bucks and no, at 7500 pounds it won't fit down a chimmney....:) In as much as I never load belted cases (and have to deal with the internal ridge), I grind the die base and adjust ram stroke accordingly using a headspace gage. If 0.006 works, 0.006 and 0.007 would be my target dimensions. Understand, the top face of the shellholder will be reduced, reducing the clearance the case head has in the milled slot on the shell holder. I'm preuming that you can insert a 0.006 feeler gage and still insert the shell in the shellholder with no difficulty? Shellholders as a rule are inherently sloppy vertically because the stress of sizing is entirely on the milled lip against the brass casehead. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Shoulder bump problem? Not far enough?
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