pet loads for 7mm and/or 300 rum

Discussion in 'Reloading' started by nr8l, Apr 25, 2009.

  1. nr8l

    nr8l Active Member

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    Hey all, I'm looking to see if any of you have/are willing to share a really good load for 300 rum in a sendero.

    I am also trying to build a lightweight rem 700 in 7mm. I dont expect to get as good a groups due to it not being a bull barrel, but I am hopefull to get moa to maybe...600???

    Anyway any info would be greatly appreciated
     
  2. AJ Peacock

    AJ Peacock Well-Known Member

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    I can't help with the 300RUM, but I've had great results with my 7mm Rem mags over the last 30yrs. My Rem700 only has a 24" thin barrel (a takeoff from an ADL). Over the years, I've tried just about every powder/bullet/primer combo you can imagine. I used H4831 with the Hornady 154gr spire point flat base at aroud 3100fps in 26" barrel for a lot of years, a long time before boattails were common and cheap for hunting bullets.

    Now, I use RL-22 and 160gr Nosler Accubonds driven at 3015fps. Incredibly accurate! Sub 1/2 moa at distance.

    One important thing that I've noticed over the years, is that I've had better accuracy with standard large rifle primers (for the 7mm) than the mag primers. I seat the 160AB at about .020" jump or slightly less and use rem 9 1/2 primers.

    My 7mm weighs exactly 8 lbs ready to hunt (bipod,scope,sling,shells).

    HTH

    AJ
     

  3. nr8l

    nr8l Active Member

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    AJ that is outstanding, thank you very much for the info. I have some 160 ab's on back order as we speak. Hopefully I can get the same results.

    Thanks again
    nr8l
     
  4. nr8l

    nr8l Active Member

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    AJ, I forgot to ask... how much rl 22 are you loading those with?
     
  5. Michael Eichele

    Michael Eichele Well-Known Member

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    For a factory Remington stick try 91.0-92.0 of RETUMBO and the 200 ACCUBOND.

    Or 98-100 and the 180 AB.
     
  6. AJ Peacock

    AJ Peacock Well-Known Member

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    I don't post loads. My load was above the book listing, but with a much longer than standard cartridge length. Just work up using a good chrono. Around 3000fps is about right.

    I use the non-mag primers so it takes a bit more powder to get the same velocity. My rifles also shot the 162gr A-Max very well. Here is a load for that bullet over on reloaders nest
    Load 10998 detail in caliber 7mm Remington Magnum

    AJ
     
  7. nr8l

    nr8l Active Member

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    thanks for the info AJ. Would I be correct in assuming your over 66 gr w/the rl22 then. I plan on starting at the 63 mark and heading up from there, I'm using the 91/2m currently so that should transfer right in.
     
  8. AJ Peacock

    AJ Peacock Well-Known Member

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    I use the standard 9 1/2 primer, not the magnum 9 1/2m primers.

    My Norma brass holds 86.3gr or water, you can compare that to your brass internal capacity. As opposed to some other brass I had (can't remember Rem or Win) that only held 82gr's. This is why it's so important to work up loads with your own components. I am sure my current load in the smaller brass would be horribly over pressure.

    It is likely that you will be around the 3000fps mark somewhere in your 63-66gr testing with the magnum primers. If you end up weighing how much water can be held in your brass, let me know, as I'd be interested.

    Thanks and good luck
    AJ
     
  9. 300RUM...andcoke

    300RUM...andcoke New Member

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    gidday
    iv got a 300 rum in a sendero with a 26" tube,i use 83grn adi 2217 (which i have been told is our equall to h1000) CCI 250 magnum primers with the 208 A - max seated 10thou from the lands.shoots 1" @ 300yds,not the best load out there im sure but it works for me

    jeremy