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Rifles, Reloading, Optics, Equipment
Reloading
Which press?
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<blockquote data-quote="Bart B" data-source="post: 513297" data-attributes="member: 5302"><p>Never heard of such a check. What's the press axis and surface one measures to see if one's perpendicular/square with the other?</p><p>I'd rather see if the shell holder flat's square with a mounted die axis. That's what's directly comparable to the bolt face being perpendicular to the chamber axis and parallel with the receiver face; the part that counts. I've done this with an optically flat round mirror. about 47/100ths and 53/100ths inch in diameter. Everything's square 'cause my bolt faces are squared up with the chamber axis and parallel with the receiver face. Much better than squaring bolt faces with the bolt axis 'cause rarely is the bolt axis on a loaded round aligned with the chamber/bore axis. A couple of my receivers' bolt axis may be a tiny bit out of alignment with the chamber axis, but that's not important as far as I'm concerned. Whatever it is stays constant for each shot.</p><p></p><p>Where would ".0015 inch of error" exist on the ram's top? This also's something new to me.</p></blockquote><p></p>
[QUOTE="Bart B, post: 513297, member: 5302"] Never heard of such a check. What's the press axis and surface one measures to see if one's perpendicular/square with the other? I'd rather see if the shell holder flat's square with a mounted die axis. That's what's directly comparable to the bolt face being perpendicular to the chamber axis and parallel with the receiver face; the part that counts. I've done this with an optically flat round mirror. about 47/100ths and 53/100ths inch in diameter. Everything's square 'cause my bolt faces are squared up with the chamber axis and parallel with the receiver face. Much better than squaring bolt faces with the bolt axis 'cause rarely is the bolt axis on a loaded round aligned with the chamber/bore axis. A couple of my receivers' bolt axis may be a tiny bit out of alignment with the chamber axis, but that's not important as far as I'm concerned. Whatever it is stays constant for each shot. Where would ".0015 inch of error" exist on the ram's top? This also's something new to me. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Which press?
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