178gr ELD-M Data for 300WM

Discussion in 'Reloading' started by ncwg2boatguy, Sep 6, 2018.

  1. ncwg2boatguy

    ncwg2boatguy Well-Known Member

    Messages:
    249
    Joined:
    Sep 10, 2013
    Hey looking to try these out on steel out to 1200 yds. I was given a box of 250pcs to play with.
    I have a Savage 24" HB 1/10 twist.
    powders on hand;
    H1000, H4350 , IMR 4350, H 4831sc, IMR 4831 , RL19, RL22, IMR 7828
     
  2. Dune870demon

    Dune870demon Active Member

    Messages:
    28
    Joined:
    Oct 27, 2016
    Check my last post here.

    https://www.longrangehunting.com/threads/300-win-mag-eld-x-load-testing.165927/page-13#post-1478836

    IMR 4350 I had good luck with, but only with 168gr AMAX loaded to standard velocity (2960fps). H1000 and RL 22/19 my gun did not like at all. I cant remember if I tested H4350 or 4831sc or IMR4831. I have not tested 7828.

    RL 26 temperature stability seems to be quite consistent. I tested rounds frozen and rounds left in the hot California sun (104-109 F), and controlled set at 72 F. Rounds did very slighly, the cold rounds seemed to drop a bit, hot rounds popped up a bit and the control shot dead on.

    Rifle I'm shooting is a R700 Long Range, 26", 1:10" 5R, with a Ross Brake installed aftermarket. RL 26 is a hard powder to find, I was forced to go to this powder because the other didn't work at all with the bullets i wanted to shoot. I would recommend trying H1000, RL 19/22 and maybe IMR 4350. Those are fairly common use in the sport and are available darn near everywhere. Look at the hornady load book too and dont be afraid to make up some of your own loads. The Load I shoot I split the difference between the listed 3100fps and 2900fps so I would be near 2950 (recommended speed for a 300wm).