7mm weatherby

Discussion in 'Reloading' started by Possum284, Apr 16, 2008.

  1. Possum284

    Possum284 Well-Known Member

    Messages:
    72
    Joined:
    Nov 18, 2007
    according to the hornady reloading manual you can push 175's to 3100 and 160's to 3200 is this really do able and can you rechamber a 7mm rem mag to weatherby thanks
     
  2. Buffalobob

    Buffalobob Writers Guild

    Messages:
    5,085
    Joined:
    Jun 12, 2001
    I do not know the answer to the chambering issue but I will tell you a few things about a 7Wby. It has freebore to ease the pressure curve. Several non-Weaterrby rifles have a lot of freebore on non-Weatherby cartridges and the most notorious of them is Ruger. There is room for a family of toad frogs to hide out for several years in there.

    So if you go to a custom 7Wby chamber, it is important to decide on the freebore issue as it will affect velocity. Secondly, with a tighter custom chamber, if done properly, you can push the pressure higher before the case separates which is always an exciting event. I have probably separated 20-30 7Wby cases in my life.

    With the slower burning powders available today you should be able to get 3200 fps with "soft" 160's but not the Accubond. The Accubond is a long bearing, surface hard to squeeze bullet and pressure will get bad in a hurry.

    Those are my experiences and every rifle is slightly different so I do not particularly say my rifle was representative of what yours will do.

    I regretted having it chambered that way. I should have gone to a 7-300Wby but I didn't know it existed until it won at Wimbledon or wherever it was.