Powder Selection

Discussion in 'Reloading' started by timmymic, Jun 14, 2018.

  1. timmymic

    timmymic Well-Known Member

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    Working on building a hunting load from my Savage 7mm-08. I typically shoot 139gr sst's with IMR 4064. I wanted to jump up to the 150gr ELDx bullet. I believe I have a 1:11 twist which is on the slow end for this built. Can I use a powder like IMR 4350 to get my velocity up to hopefully help stabilize the bullet or will that not help? Other powders recommendations are welcome!
     
  2. RockyMtnMT

    RockyMtnMT Official LRH Sponsor

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    You should run the Berger twist calculator to see what you will get with varying vel. Vel does not make much of a diff.

    Steve
     
  3. jimbires

    jimbires Well-Known Member

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    look at RL17 powder for high velocity .
     
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  4. jraulsten

    jraulsten Well-Known Member LRH Team Member

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    RL17 will give the highest velocity. IMR 4350 would most likely be one of the slowest.
     
  5. Kevin Rohrer

    Kevin Rohrer Well-Known Member

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    4350 is a slowwwww powder. Look at powders in the 4064, BLC2, Varget range.
     
  6. jraulsten

    jraulsten Well-Known Member LRH Team Member

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    Every gun is different, but Varget has always been my "go to" powder for both the 7mm-08 and 308.
     
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  7. dgarrett

    dgarrett Well-Known Member

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    as stated above Varget is a good first try
     
  8. cape cove

    cape cove Well-Known Member

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    Over the last 30 yrs i've had 3 different 7mm/08's and all 3 loved H-414/WW760 with 140 gr class bullets for vel and accuracy.
     
  9. Dosh

    Dosh Well-Known Member

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    + for Varget. Quite accurate in my grandson's 7-08.
     
  10. Just cut

    Just cut Well-Known Member

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    Reloaded 26 will get you some speed.
     
  11. g0rd0

    g0rd0 Well-Known Member

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    if you want to know your twist send savage an email with your serial number. It may take some time but, they will respond with the twist rate for your rifle. My g series savage (g meaning the first letter of the serial number), is 1 in 9.5 inches. Wich will stableize anything from 145 to 175 quite nicely
     
  12. lancetkenyon

    lancetkenyon Well-Known Member

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    Savage 110 in 7-08 should be a 1:10" twist. Other Savages in 7-08 should be a 1:9.5" twist.
     
  13. AZShooter

    AZShooter Well-Known Member

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    Hodgdon lists the three fastest powders with velocities in the 2660 to 2733 fps 24" barrel.
    H4350
    IMR 4451
    H414
    Find the loads here:
    http://www.hodgdonreloading.com/data/rifle

    Alliant lists RL-17
    RL-17 yields approximately 2800 24" barrel with a 150 gr bullet
    http://www.alliantpowder.com/reloaders/powderlist.aspx?type=1&powderid=25&cartridge=70

    Much to my surprise RL-16 surpasses all the powders listed above.
    RL-16 yields 2852 fps 24" barrel
    http://www.alliantpowder.com/reloaders/RecipeList.aspx?gtypeid=2
     
  14. RegionRat

    RegionRat Member

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    How sure are you about the twist rate on your bbl?

    It isn't very difficult to measure it using a tight patch wrapped around a bbl cleaning jag and a ruler. Like the posts above, I think your twist is probably a 10. You should be okay with the usual hunting bullets. Varget is a good starting point, as are many of the others listed. 7-08 was/is a very popular cartridge in Hunter Class Silhouette and the pet loads are very common.