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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
True barrel length question for those in “the know”!!!
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<blockquote data-quote="FEENIX" data-source="post: 2061092" data-attributes="member: 14204"><p><h3>ATF Standard Method to Measure Barrel Lengths </h3><p>This is ATF's standard method for measuring the length of gun barrels - it has been documented to be the case for shotguns and rifles. </p><p></p><p><strong>Procedure</strong></p><ol> <li data-xf-list-type="ol">Unload the weapon.</li> <li data-xf-list-type="ol">Close the action.</li> <li data-xf-list-type="ol">Cock the action (this is important - unless cocked, the firing pin will protrude from the bolt face and may not provide the correct measurement.</li> <li data-xf-list-type="ol">Run a dowel or cleaning rod of approximately the bore diameter down the barrel.</li> <li data-xf-list-type="ol">When the rod is down as far as it will go, mark the spot where the barrel and <em>permanently</em> mounted attachments end on the rod. Screwed-on attachments do not count.</li> <li data-xf-list-type="ol">Measure the rod's length between the mark you just made and the end which you ran down the barrel.</li> </ol></blockquote><p></p>
[QUOTE="FEENIX, post: 2061092, member: 14204"] [HEADING=2]ATF Standard Method to Measure Barrel Lengths [/HEADING] This is ATF's standard method for measuring the length of gun barrels - it has been documented to be the case for shotguns and rifles. [B]Procedure[/B] [LIST=1] [*]Unload the weapon. [*]Close the action. [*]Cock the action (this is important - unless cocked, the firing pin will protrude from the bolt face and may not provide the correct measurement. [*]Run a dowel or cleaning rod of approximately the bore diameter down the barrel. [*]When the rod is down as far as it will go, mark the spot where the barrel and [I]permanently[/I] mounted attachments end on the rod. Screwed-on attachments do not count. [*]Measure the rod's length between the mark you just made and the end which you ran down the barrel. [/LIST] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
True barrel length question for those in “the know”!!!
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