.284 Shehane Chambering Issue

Discussion in 'Advanced Gunsmithing & Engineering' started by watercam, Sep 14, 2019.

  1. watercam

    watercam Gold $$ Contributor

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    Have friend who is a mechanical engineer and machinist. Has a .284 Shehane barrel that had 1500 rounds through it and he decided to set it back an inch. Same barrel, same reamer. Whereas he was pushing 57.5 gr. of powder through it with his chosen bullet, he now is popping primers at 55 gr. of the same powder and bullets. Bolt closes on his Go-gauge when installed on his action. What is happening?
     
  2. swd

    swd Gold $$ Contributor

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    Probably the the throat was well worn and now it’s pushed back to where it was when it was new.
     
    Last edited: Sep 15, 2019
  3. Dusty Stevens

    Dusty Stevens COVFEFE- Thread Derail Crew Gold $$ Contributor

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  4. watercam

    watercam Gold $$ Contributor

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    Thanks for the reply. According to him he has been using the 57.5gr. load since day one. Maybe it will shoot in after next weeks match...
     
  5. Dusty Stevens

    Dusty Stevens COVFEFE- Thread Derail Crew Gold $$ Contributor

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    Tell him to look at the throat real close. It may need some manual break in
     
  6. watercam

    watercam Gold $$ Contributor

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    Will do
     

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