Rifling Methods


Rifling Methods
   1. broach, gang — a tool having a series of cutting edges of slightly increasing height used to cut the spiral grooves in a barrel.
   2. broach, single — a non-adjustable rifling cutter which cuts all of the grooves simultaneously, and is used in a series of increasing dimensions until the desired groove depth is achieved.
   3. button — a hardened metal plug, called a button, with a rifled cross section configuration. It is pushed or pulled through a drilled and reamed barrel so as to cold form the spiral grooves to the desired depth and twist. When the carbide button was first introduced it was described as a swaging process or swaged rifling.
   4. hook — a cutting tool which has a hook shape and only cuts one groove at a time.
   5. scrape — a cutting tool which cuts two opposing grooves at a time.
   6. swage — an internal mandrel with rifling configuration which forms rifling in the barrel by means of external hammering. Also known as hammer forging.

Forensic science glossary. . 2012.

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