300 Rum Loads with 220 SMK and 240 SMK

Discussion in 'Reloading' started by rangerman, Sep 12, 2011.

  1. rangerman

    rangerman Well-Known Member

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    I would appreciate any load information you have for the 300 RUM using the 220 SMK and the 240 SMK bullets. I have Retumbo, H-1000, and Reloader 25 powder that I can use with the Nosler brass and Federal 215 primers.
    Thanks in advance for your help.
     
  2. C.O. Shooter

    C.O. Shooter Well-Known Member

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    I am currently running 90 grains of H1000, behind the 220 SMK, and Federal 215M primers. OAL is 3.6850!

    I have awesome results with this! I have a first generation Remington Sendero with a 26 in barrel and a brake!
     

  3. Chase Curtis

    Chase Curtis Official LRH Sponsor

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    My pet with the 240 is 103 grains of US869

    Fire formed brass

    OAL 3.625

    Fed 215m primer

    Rem brass

    Runs right at 2950...

    I have run it up to 104.5 grains.. But accuracy goes to u know what.. Also FOR ME bumping it down to 103 gave me some room with no presure signs,

    But it's a hot load.. PLEASE START LOWER..

    I also played with the seating.. At 3.60 slight pressure but still good accuracy.. Those were also fl sized though..
     
  4. Camshaft

    Camshaft Well-Known Member

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    86.5gr of Retumbo with a 240gr Matchking was giving me around 2900fps in a 26" bbl i believe, its been a while, i will double check and bet back to you. I know it was not a high pressure load
     
  5. Chase Curtis

    Chase Curtis Official LRH Sponsor

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    Co shooter... What kind of velocities are you getting with that load and seating depth?
     
  6. C.O. Shooter

    C.O. Shooter Well-Known Member

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    If memory serves me well, I believe those are moving about 2979 FPS!
     
  7. AKGuide

    AKGuide Well-Known Member

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    Older thread but thought I'd offer my loads.

    Nosler brass
    Federal GM215M
    220 smk 87.5 grains retumbo 3.655" 3075fps
    240 smk 92.0 grains H50BMG 3.658" 2913fps ES 2
    Both seated to kissing the lands
    28" pacnor on a trued rem 700

    These bullets shoot bug holes but the 220 smk gives me vertical at longer ranges. Also the nosler brass is ten grains heavier than my sorted rem brass.

    The pic is my first 1000 yard group I ever shot 6.5". It's with the 220 SMK. The top three masked taped holes are from 750 yards 4.4".

    Reuben
     

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    Last edited: Mar 22, 2013