Barnes 175 LRX loads for 300 RUM

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by 318lll9740, Sep 5, 2013.

  1. 318lll9740

    318lll9740 Well-Known Member

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    Good evening...

    I have a new thunderstick on the way and I need to make some ammo for it. This is my 3rd 300 ultra, but this is the first time I've got a chance to shoot some 175 Barnes LRX. I use Retumbo for my 300 ultra and would like to stick to it. Rifle is a Browning a-bolt with medium fluted 26" barrel. Any tips for proper cleaning using these projectiles would be appreciated as well. Thanks and good look to all this season:)
     
    Last edited: Sep 5, 2013
  2. clambdin

    clambdin Well-Known Member

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    Seems like I was running close to 100grs of Retumbo with that bullet shot very well ! Start low and work up..Like all barnes that bullet likes to jump..
     

  3. 318lll9740

    318lll9740 Well-Known Member

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    There is no load info for that particular bullet so that will at least give me some point of reference.
     
  4. clambdin

    clambdin Well-Known Member

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    Let me know how that combo works for you ?
     
  5. B-P-UU

    B-P-UU Well-Known Member

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    300 RUM, Rem M700 (26" barrel)
    175 gr. Barnes LRX
    Rem Brass
    CCI 250 Primers
    C.O.A.L: 3.675"
    Retumbo Powder - I think I started around 94 gr and worked up to 99.5. Primers were pretty flat at that point and I was getting extractor marks on the brass. Settled on 98.8 gr of Retumbo for a velocity of 3400 fps.

    Hope that helps.
     
  6. 318lll9740

    318lll9740 Well-Known Member

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    Thanks guys! Im getting ready to load up a few and my rifle should be here Tuesday. If I get accuracy around 3250 I'll be happy. Looks like that may be pretty easy
     
  7. feelinducky

    feelinducky Well-Known Member

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    You will get to 3250 easy. I shoot the TTSX 180g and get right @ 3200 with 92.5g Retumbo.
    I am a little disappointed with Barnes right now. I ordered 129g LRX for my 270wsm and they don't group well. They are longer than a 140g Nosler and 140g Berger with a lower bc. I'm limited on Magazine length so that extra bit is taking up case volume. I sent Barnes an email on the subject last week and have yet to hear from them.