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Job Description:

  • 1) Straightens small arms barrels to remove bends and crooks, using either line or ring method: Positions barrel in straightening press, sighting it toward frosted glass plate across which is drawn black horizontal line.

  • 2) Sights through barrel, noting two line-shadows cast longitudinally along interior by reflected light from frosted glass.

  • 3) Tightens jaws of press to bend barrel at points where shadows are not straight to straighten barrel.

  • 4) Positions barrel on special fixture.

  • 5) Sights through barrel toward light, noting position of three ring-shadows cast inside bore by light passing through ring scribed on smoked glass at far end of barrel.

  • 6) Removes crooked barrel from fixture and strikes it with soft metal mallet against babbitt block to remove bend indicated by position of rings.




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End Of Job Description for: "BARREL STRAIGHTENER I"
DOT:   736.684-026

Job Number: 620