Powder burn rate Vs. Bullet weight? And 7mmSTW 168gr berger loads?

Discussion in 'Reloading' started by Sako7STW, Aug 10, 2010.

  1. Sako7STW

    Sako7STW Well-Known Member

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    I am in the process of figuring out a new load for my STW and am about to make a drastic change in bullets. Currently I shoot a 127gr Groove Bullet that is no longer made. I am looking to go long range and have ordered up 300 of the 168 Berger VLD hunting bullets. Currently I am shooting Reloader 22 and I am not sure if I need to go faster or slower powder to move to the much heavier bullet? I am guessing slower and am considering using Retumbo. I have H-1000, Retumbo, and RL-22 on hand that I can test with.

    Any pet load info that you may know of for the 7MM STW with these bullets would be much appreciated. Thanks!
     
  2. Mikecr

    Mikecr Well-Known Member

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  3. slush

    slush Well-Known Member

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    Sep 7, 2008
    This is a load that I found shooting 168 Bergers with 79.0 grains of retumbo out of my 7 Stw
    CED 2 chronograph reading:

    3068.0 3069.0 3077.0 3068.0 E.S.: 9.0 Ave.: 3070.5 S.D.: 4.4
    95% +/- 8.1