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Rifles, Reloading, Optics, Equipment
Reloading
Free bore measurement?
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<blockquote data-quote="MagnumManiac" data-source="post: 3008859" data-attributes="member: 10755"><p>It is measured from the end of the chamber where the clearance for the neck is back down to nominal bullet diameter, including clearance for the bullet. This dimension is almost always .040" or .050" longer than max case length. It is then measured to the full height of the rifling.</p><p>There is actually 2 dimensions to a throat, the true throat, coned or parallel section, and the leade. Most reamer prints denote the difference, but do not specify which is what.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 3008859, member: 10755"] It is measured from the end of the chamber where the clearance for the neck is back down to nominal bullet diameter, including clearance for the bullet. This dimension is almost always .040” or .050” longer than max case length. It is then measured to the full height of the rifling. There is actually 2 dimensions to a throat, the true throat, coned or parallel section, and the leade. Most reamer prints denote the difference, but do not specify which is what. Cheers. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Free bore measurement?
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