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The Range
NFA & Class III Discussion
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<blockquote data-quote="Honeybee" data-source="post: 1472113" data-attributes="member: 3655"><p>NFA handbook 2.1.3</p><p></p><p>The ATF procedure for measuring barrel length is to measure from the closed bolt (or breech-face) to</p><p>the furthermost end of the barrel or permanently attached muzzle device. Permanent methods of</p><p>attachment include full-fusion gas or electric steel-seam welding, high-temperature (1100°F) silver</p><p>soldering, or blind pinning with the pin head welded over. Barrels are measured by inserting a dowel rod</p><p>into the barrel until the rod stops against the bolt or breech-face. The rod is then marked at the</p><p>furthermost end of the barrel or permanently attached muzzle device, withdrawn from the barrel, and</p><p>measured.</p></blockquote><p></p>
[QUOTE="Honeybee, post: 1472113, member: 3655"] NFA handbook 2.1.3 The ATF procedure for measuring barrel length is to measure from the closed bolt (or breech-face) to the furthermost end of the barrel or permanently attached muzzle device. Permanent methods of attachment include full-fusion gas or electric steel-seam welding, high-temperature (1100°F) silver soldering, or blind pinning with the pin head welded over. Barrels are measured by inserting a dowel rod into the barrel until the rod stops against the bolt or breech-face. The rod is then marked at the furthermost end of the barrel or permanently attached muzzle device, withdrawn from the barrel, and measured. [/QUOTE]
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