Advice for reloading the 7mm weatherby

Discussion in 'Reloading' started by dysphonic, Aug 21, 2013.

  1. dysphonic

    dysphonic Member

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    6
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    Jun 15, 2011
    Hi there,

    I am about to start reloading a 7mm weatherby mag in a mark v weatherby and would value some advice from those of you who have done so.

    Normally when I begin a load work up I start by focusing on the powder charge. I tend to seat the bullets 0.01 - 0.02 off the lands (unless i am loading barnes tsx then i start at 0.04) and leave it there until I have identified the powder charge I will use. When that is done I play around with seating depth to see if I can tighten the groups.

    However, with the extra free bore in the weatherby mark v I understand that it is unlikely I will be able to get that close to the lands.
    Should I instead use magazine length as a starting point and if so how far off that length should I back off-in terms of bullet seating?

    Your thoughts and suggestions would be much appreciated.

    Cheers
     
  2. MudRunner2005

    MudRunner2005 Well-Known Member

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    12,920
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    Oct 13, 2008
    Yes, magazine length will do just fine. That's what I do for my .257 Wby. I just seated them about 0.005-0.010" shy of the magazine length.
     
  3. thatguyshm

    thatguyshm Well-Known Member

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    Jul 22, 2013
    +1. I do the same exact with my 257 WBY SUB MOA. Just check case length often as they like to grow if you shoot warm loads.
     
  4. dysphonic

    dysphonic Member

    Messages:
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    Jun 15, 2011
    Excellent. Thanks for the replies:D