338-378wby velocity

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by Country boy, Dec 14, 2012.

  1. Country boy

    Country boy New Member

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    Dec 9, 2012
    Thinking of getting a custom rifle with a hart barrel 28 inch with muzzle brake . Chambered in 338-378 wby handloaded with 180 grain accubond and 200 grain ballistic tip using IMr 7828 or IMr 4831 powder what kind of velocity should I expect ?
     
  2. toddc

    toddc Well-Known Member

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    Jul 18, 2005
    Reaaaaaaaaaaaaaally fast. Figure 3500+ easy on a 180. You have heard of the 300 smk?