300 weatherby load data

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by gary brezinski, Sep 29, 2001.

  1. gary brezinski

    gary brezinski Member

    Messages:
    23
    Joined:
    Jul 7, 2001
    sir,
    i have a 300 weatherby mk v.
    what would you reccomend for 190 mkhp sierra bullets for loading data?i just trysd 78 gr of 4831 dupont with bad results,group was 1.75 for 3 shots at 100 yds.
    gary b
     
  2. AFP

    AFP Guest

    Gary,

    Sierra recoomends 73.4 grains of IMR 4350 with the 190 grain Matchking. You can call Sierra at (800) 223-8799 and get some one-on-one advice from one of their "ballistic technicians." They are open M-F from 0800-2200.

    Blaine
     

  3. Ian M

    Ian M Well-Known Member

    Messages:
    2,410
    Joined:
    May 3, 2001
    Gary,
    I have had excellent results with RL-22 and RL-25 (Federal 215 primers, Weatherby brass) - my rifle likes a fairly stout charge for best performance. Best work up to the max in your rifle but these powders are worth a try.
    ian