Any 7mm WSM load data?

Discussion in 'Reloading' started by stonesmokey, Jan 17, 2008.

  1. stonesmokey

    stonesmokey Member

    Messages:
    17
    Joined:
    Jan 31, 2007
    I have a few Barnes 130gr (discontinued) I want to load up. But also want any advice for this cartridge as it has been very particular so far. Best results yet are the 150gr Accubond and 67.5gr of H4831.
    Thank you,
    Stoney
     
  2. loaders_loft

    loaders_loft Well-Known Member

    Messages:
    1,009
    Joined:
    Feb 11, 2008
    I did lots of testing for my 7mm wsm last summer. Didn't get anything "Decent" until I started using the 162 gr Hornady interlok, (I suspect) because it was able to seat up to the lands, while the 139gr and 154 gr interbond were not. The magazine length on my ultimate shadow restricts the COL. I ended up with H1000 powder, but still not completely satisfied.

    I get LOTS of fouling with this gun despite several treatments of JB, attempting to hone the barrel.

    I'm going to do some ladder tests, once my chrony arrives.

    If anyone else has tips on the 7mm wsm, please post them.

    thanks,
     

  3. Lost creek

    Lost creek Well-Known Member

    Messages:
    126
    Joined:
    Jul 20, 2007
    I am using 67grs.of imr7828ssc with a 160 accubond, 215m primer and winchester brass at 3040 fps. 7828ssc is the best powder i have tried in my rifle.
     
  4. JeffVN

    JeffVN Well-Known Member

    Messages:
    620
    Joined:
    Mar 19, 2004
    I get good to great results in my 7WSM with H1000 and RL-25, but I've only run the 175 Sierra smk, 180 JLK, and 180 bergers.

    Jeffvn
     
  5. Blacktail2

    Blacktail2 Well-Known Member

    Messages:
    91
    Joined:
    Mar 26, 2006
    I have good luck with H1000, and Retumbo,a little more speed with the Retumbo with less pressure.My favorite is 70.5 grains of Retumbo under a 175 Match King.Speed for this load is 2930.This is near max load in my rifle,start lower and work up to be safe.
     
  6. HoytemanPA

    HoytemanPA Well-Known Member

    Messages:
    230
    Joined:
    Dec 16, 2001
    I also ended up with H1000/Fed215GM in the 7wsm with a 162 Amax (favorite) and 175 SMK
    Tried many ladders and group comparisons with combinations of H4831sc, Retumbo, H1000, 162Amax, 175 SMK, 180 Berger.
    The 180 Bergers tested marginal in my 9.5 twist, just started to show promise, at the same time I hit max pressure.
    I would suspect H4831sc would work the best for 150's and lower.
    Shummy
     
  7. champion

    champion Member

    Messages:
    6
    Joined:
    Dec 23, 2007
    My Load

    For hunting whitetail I use 69gr. of RL 19 and a Nosler Ballistic tip 140 gr. bullet---runs 3210 fps. w/a 27 in barrel and is very accurate
     
    Last edited: Feb 24, 2008
  8. cross

    cross Well-Known Member

    Messages:
    258
    Joined:
    May 30, 2007
    7WSM Loads

    My Model 70 Coyote (24"bbl) likes both of the following loads:

    62 gr H4350
    Fed GM215M
    150 gr Scirocco II
    Win Brass
    OAL 3.307
    Vel ~3165

    also

    71 gr Retumbo
    Fed GM215M
    160 Accubond
    Win Brass
    Vel ~3040