still working on a load for the 300RUM

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by freebird63, Mar 22, 2010.

  1. freebird63

    freebird63 Well-Known Member

    Messages:
    572
    Joined:
    Dec 20, 2009
    Spent the day out in the desert trying to figure out which load is going to shoot in my sendero 300RUM.
    The two powders I have been trying are Retumbo and Ramshot magnum.
    The bullets I have been using are berger, 175gr, 185gr, 190gr and 210gr.
    So far I like the way the 185's shoot. My two best loads were 96gr Retumbo and 97gr Retumbo. But they were not that good, nothing to brag about. I started out at 100 yards and then moved out to 200 yards. I had found a max load of 100gr of Retumbo and that seemed to throw the bullets everywhere. I think I will play a bit more with seating my bullets closer to the lands, but not too close that it makes my rifle a single shot. If that doesn't work then I guess my gun doesn't like berger bullets and its back to Nosler accubonds. I never had these kinda problems with accubonds with my wifes 300SAUM.
    Any advice from the guru's out there?????
     
    Last edited: Mar 22, 2010
  2. AZShooter

    AZShooter Well-Known Member

    Messages:
    2,075
    Joined:
    Dec 12, 2005
    Some rifles just won't shoot the Bergers. My 300 RUM won't. You may have to move on to other manufacturer's bullets.

    Regardless of the outcome I am concerned with your statement that you used 67 and 68 grs of Retumbo. Is that a typographical error? I just checked Hodgon's site
    ( http://www.hodgdon.com/basic-manual-inquiry.htmland ) minimal load for a 180 was listed at 94 grs of Retumbo. 190 gr bullet's minimum charge was 90 grains. If you are shooting lower charge weights you could have a safety issue. There is a reason they don't mention lighter charge weights. Stick with recommended load data!
     

  3. freebird63

    freebird63 Well-Known Member

    Messages:
    572
    Joined:
    Dec 20, 2009
    Thank you for catching that, I was wore out last night when I posted that. It was suppose to mean 96gr & 97gr. I loaded with the information that Walt from Berger had sent me. I know my wifes 300SAUM loves Nosler accubonds, I just might have to give them a try. The Scirrocco's look like a good bullet too. My next attempt will be seating the bullets a little closer to the lands and if that doesn't work then will look at other bullets.
     
  4. 3006savage

    3006savage Well-Known Member

    Messages:
    279
    Joined:
    Jul 16, 2008
    I am no gun guru but the 208 grain amax is difficult to impossible to beat for external ballistics with a .648 BC. It should be heavy enough to work well on game despite its light construction. If using lightly constructed bullets like the Bergers or Amax I think a heavy for caliber bullet is the safer choice for on game performance.
     
  5. SomeRumbum

    SomeRumbum Well-Known Member

    Messages:
    53
    Joined:
    Jan 7, 2010
    Try RE 25 and 180 grain and above bullets. Start at 93.0 grains and work up. I use 96.0 grains behind 180-190 bullets and have seen great results. Use FED215m primers. Good luck.
     
  6. rugerdog5

    rugerdog5 Well-Known Member

    Messages:
    123
    Joined:
    Mar 25, 2010
    My rum load is 90 grains retumbo with a 200 grn mk with gold medal mag primers. I'm getting 3100 even from my rem 700 police and at 200 yards i shoot three rounds in the same hole. That my pet load I've tried bergers and they shoot great as well but not as good
     
  7. freebird63

    freebird63 Well-Known Member

    Messages:
    572
    Joined:
    Dec 20, 2009
    I am thinking I may have to go get some of those 208 Amax bullets and load a few and see what happens.
     
  8. Scottf

    Scottf Well-Known Member

    Messages:
    89
    Joined:
    Jun 15, 2009
    I Shoot the same as SOMERUM BUM, 180 gr SMK, 96 gr RL25 FED215M Can hold 8.5 at 1000 yrds.
     
  9. freebird63

    freebird63 Well-Known Member

    Messages:
    572
    Joined:
    Dec 20, 2009
    Are people using SMK's for hunting??? I don't know why but I thought they didn't recomend using them for hunting???