Best Powder for 300 RUM 210 gr vld AND 7RUM 168 gr vld?

Discussion in 'Reloading' started by sambo3006, Jan 20, 2011.

  1. sambo3006

    sambo3006 Well-Known Member

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    I'd like to get an 8 lb cannister of one powder to shoot in my 300 RUM with 210 gr VLD's and also my 7mm RUM with 168 gr VLD's. It looks like Retumbo would be the best as far as burning rate and velocity but I don't know how temp sensitive this powder is. Any input or suggestions on other powders?

    I've tried the search function and either I don't know what I'm doing or the search function stinks.:rolleyes:
     
  2. jmden

    jmden Well-Known Member

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    I'd guess Retumbo as well among the Hodgdon Extreme powders anyway. I shooting 94 grains and change for the 210 and it seems many guys are finding good accuracy and velocity somewhere close to that from several previous posts here.
     

  3. backwoods83

    backwoods83 Well-Known Member

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    Imr 4831 would be the hottest i'd use in either, RE22 and 25 are good, retumbo, H870, N165, 7828ssc, H1000. I usually see that the best results are had with RE25, N165, and retumbo as far as speed and accuracy.
     
  4. remingtonman_25_06

    remingtonman_25_06 Well-Known Member

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    H1000 followed by Retumbo in my experience with both calibers and both bullets in those calibers.
     
  5. 4ester

    4ester Well-Known Member

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    Retumbo is best out of my 300 RUM with the 210 Bergers. It is a Hodgen Extreme powder and is not temperature sensitive.
     
  6. eyeballjr

    eyeballjr Well-Known Member

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    How about primers, i have been using winchester, almost out of them. Anyone having any luck with anything else
     
  7. 4ester

    4ester Well-Known Member

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    I try to stay with Federal 215s. Thats what I did my load developement with and I wont change.
     
  8. luke

    luke Well-Known Member

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    I dont own a 7RUM but I load for several regular 7RM, 2 of which are mine. I use the retumbo in all of them because of the velocity and accuracy that I get with it. I also load for a 300WM and a 300RUM both of those burn retumbo for the same reasons. My RUM is about 75 to 125 fps faster than the other powders that I tried. Never shot anything else threw my 7RM but the velocities are around 150 fps faster than the book claims it will go.
     
  9. eyeballjr

    eyeballjr Well-Known Member

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    Thanks, i was thinking of giving them a try, i did not do much load development with this gun a few years back and the load i use now was the second one i tried. Not too bad. Could be better though. I really think this gun could get down under .3 moa if i put the time in. Right now it is about .5 and has not been bedded or anything like that. Just a factory Sendero
     
  10. remingtonman_25_06

    remingtonman_25_06 Well-Known Member

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    I also used strictly Fed 215s in my 7RM and 300 RUM. Worked so well first time around never even crossed my mind to wanna mess with primers...

    However, I do use CCI 250s in my EDGE since that seemed to be what everyone else was using and was part of Shawns standard load in the 338 EDGE. No problems with them and I can get them locally.

    I havne't been able to find Federal primers locally at a decent price for bout 3-4 years now, bout to run out of my stash of them, I know I have less then 1000 each of the 210s and 215s.