300 rum

Discussion in 'Reloading' started by bobh918, Sep 15, 2010.

  1. bobh918

    bobh918 Well-Known Member

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    Feb 19, 2009
    Got a custom 300 ultra that I am getting ready to reload for. I was curious what would be a better powder or what is preferred by you ultra shooters, retumbo or H1000? I currently have a couple pounds of H1000 and have no problem going out and getting retumbo if that would be a better choice. Was going to load for 210 bergers or 200 accubonds whichever shoots better. I was just looking for a little feedback before I spend everyday looking for the combo that the rifle likes. Any info to help me cut down on the "perfect combo" phase is greatly appreciated. Waiting to get the rifle bedded, so I got a little time. Will post pics and specs when it is complete. Thanks in advance!!

    Bobby
     
  2. Varmint Hunter

    Varmint Hunter Well-Known Member

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    Here's the load that shots best in my 11 twist Broughton 5C bbl.

    101.1 gr Hodgdon US869 under the 210 VLD and a 215M primer. I shoot just under .5moa @ 300yds pretty regularly. Velocity is a shade short of 3,200 ft/sec and the pressure is lower than just about any other powder.
     

  3. reflexnz

    reflexnz Member

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    8
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    Mar 27, 2009
    Heres mine

    88gr adi 2217(h1000) 240gr smk fed 215 magnum primers.. 26" barrel 2800 fps 1" 200yards
     
  4. MTBULLET

    MTBULLET Well-Known Member

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    H-1000 works better for me, ES and SD lower than any other powder
     
  5. highridge1

    highridge1 Well-Known Member

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    Jan 24, 2008
    I have had best results with RL25,about a week ago I shot 5 200 gr accubonds into 3/4 inch and had 3 duplicates in velocity out of 5 and the other 2 were within 5 fps. The velocity was running 3120. I just ditched H1000 due to the fact that lately from lot to lot in has been extremely eratic.
     
  6. WildCats

    WildCats Member

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    Jun 25, 2007
    A 210 gr. VLD over Retumbo or RL25 both print .5 at 100 yds at around 3100 fps.
     
  7. 300 ultra

    300 ultra Well-Known Member

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    Apr 17, 2010
    My go to load has been RL 25 AND 200 Accubond but as of late 94 grains of retumbo and 200 accubonds has been more consistent. 27" Lilja 10 twist.
     
  8. bobh918

    bobh918 Well-Known Member

    Messages:
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    Feb 19, 2009
    Thanks for the responses fellow ultra guys! Seems like mixed responses. At least it looks like two powders as opposed to five or six. I will just have to give'em a whirl. The rifle is a rem 700 action trued with a 30" kreiger HV taper braked. Like I mentioned before, will get pics when I get it into the stock. Thanks again!!

    Bob