7 WSM/180 VLDs/ H1000

Discussion in 'Long Range Hunting & Shooting' started by cabinfever, Apr 9, 2011.

  1. cabinfever

    cabinfever Well-Known Member

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    Anyone shooting a 7 wsm with 180 berger vlds and H1000 powder. I'm looking to get max velocity out of the 180's in a 24 inch hart barrel using H1000.Of course, sub 1/2 moa is always the goal. Any reccomendations?
     

  2. geargrinder

    geargrinder Well-Known Member

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    Your barrel may be too short for H1000. You may be better off with 4350 or R17.
     

  3. Too Tall Rosenwald

    Too Tall Rosenwald Well-Known Member

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    I'm using 66 grains of H1000, but it's not max. I can put 5 shots in a big clover leaf. I got a 25-1/2" barrel, with a Edge brake.
     
  4. cross

    cross Well-Known Member

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    Too Tall,

    What's your velocity, primer, and seating depth?

    Thanks,

    Cross
     
  5. Too Tall Rosenwald

    Too Tall Rosenwald Well-Known Member

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    The case is WW, primer Federal 215. I don't know the other info. I started at magazine length, and went from there. Try it and see.
     
  6. cross

    cross Well-Known Member

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    Thanks Too Tall!

    Cross
     
  7. JeffVN

    JeffVN Well-Known Member

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    My 26" 7WSM shoots the 180s when loaded with H1000 and 2.90" to fit into an AI SA Mag to roughly 2,800 fps.

    JeffVN
     
  8. Shawn Carlock

    Shawn Carlock Sponsor

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    As much as I like H1000 we have had much better luck with H4831SC in the 7 WSM with the 180 Berger 2910 fps out of a 25" Hart tube and great accuracy.
     
  9. dirtball

    dirtball Well-Known Member

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    Shawn

    Are you using standard or magnum primers? I have a 22" barreled SP in 7WSM and am using BR2 primers with 4831SC and getting 2900 fps with great accuracy with both 175 SMK and 180 JLK.

    Dave
     
  10. TMR

    TMR Well-Known Member

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    +1 on H4831SC with the 180's. Might also try Reloader 22. Gives a little more speed than H4831, but it also a little more temp sensitive.
     
  11. Shawn Carlock

    Shawn Carlock Sponsor

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    We are using the CCI 250's
     
  12. cabinfever

    cabinfever Well-Known Member

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    jeff, how many grains of H1000 are u using
     
  13. cross

    cross Well-Known Member

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    Shawn,

    Couple of quick questions.

    Relative to the lands, where have you found your best accuracy with the 180's (seating depth relative to the lands)?

    Also, when looking at my ballistics program, it appears that the velocity of the 180's needs to very close to that of the 168's in order to get similar wind drifts. These velocities are often difficult to achieve, which would appear to make the 180's worthwhile. Yet benchresters and very experienced shooters seem to opt for the 180's. Can you tell me why the 180's are so preferable when the ballistics software doesn't seem to bear it out?

    Much appreciated.

    Cross
     
  14. JARHEAD1371

    JARHEAD1371 Well-Known Member

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    I just ran some numbers through Exbal and I found some interesting results. I was thinking of trying the Berger 180 Hybrids, until now.

    180 Berger
    .659 BC
    2950 fps
    20 MOA sight adjustment @1000 yds
    4.75 MOA windage adjustment 10 mph
    1318 ft lbs at impact

    168 Berger
    .617 BC
    3050 fps
    19 MOA
    5 MOA
    1241

    162 A-max
    .625 BC
    3050 fps
    19 MOA
    4.75 MOA
    1214


    I currently shoot the 162 A-max out of my 7 SAUM at the speed noted. As I see it, there's no reason for me to try the 180s since the 162s shoot .25-.3 MOA out of my rifle.
     
    Last edited: Apr 13, 2011