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Rifles, Reloading, Optics, Equipment
Gunsmithing
About to cut my first chamber
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<blockquote data-quote="ar10ar15man" data-source="post: 1617857" data-attributes="member: 106836"><p>lets start with a pretty well known fact</p><p>bbl bores are NOT STRAIGHT, they worm hole</p><p>if you use a bushing to follow the bore IT WILL push the reamer around the axis of the bushing..which is following a worm hole. the back of the reamer has a hard time maintaining no run out and correct dia.</p><p></p><p>jump forward</p><p>once the bbl is aligned at the throat.</p><p>taper bore to match the reamer.</p><p>now WITHOUT A BUSHING, the reamer aligns on the taper, which is pointed at the throat.</p><p>if all is done correctly, your chamber will point the bullet squarely into the bore.</p></blockquote><p></p>
[QUOTE="ar10ar15man, post: 1617857, member: 106836"] lets start with a pretty well known fact bbl bores are NOT STRAIGHT, they worm hole if you use a bushing to follow the bore IT WILL push the reamer around the axis of the bushing..which is following a worm hole. the back of the reamer has a hard time maintaining no run out and correct dia. jump forward once the bbl is aligned at the throat. taper bore to match the reamer. now WITHOUT A BUSHING, the reamer aligns on the taper, which is pointed at the throat. if all is done correctly, your chamber will point the bullet squarely into the bore. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
About to cut my first chamber
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