338 ultra 338 edge

Discussion in 'The Basics, Starting Out' started by 7101stelk6pt, May 6, 2007.

  1. 7101stelk6pt

    7101stelk6pt Member

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    what is the difference between the 338 rum and the 338 edge
     
    Last edited by a moderator: May 4, 2012
  2. jwp475

    jwp475 Well-Known Member

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    The 338 RUM case is shoter than the 7mm,300Rum,375RUM the 338 Edge is the 300 RUM necked up to 338 Cal with no other changes.......................[​IMG]
     

  3. James Jones

    James Jones Well-Known Member

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    The Edge is a 300 RUM case necked up to the 338 caliber.
    The 300 RUM case is a bit longer at the shoulder thus holding more powder , 6-8grs more if I'm not mistaken.
     
  4. 7101stelk6pt

    7101stelk6pt Member

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    thanks ,
     
  5. royinidaho

    royinidaho Writers Guild

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    I'd figure about 150-200FPS advantage w/the Edge w/300 SMKs