Reloading data for 240gr SMK in a 30-378

Discussion in 'Reloading' started by edenfies, Sep 15, 2008.

  1. edenfies

    edenfies Member

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    I'm trying to develop a load for my Sako M995 30-378 using a 240 gr SMK. Please reply with any load data you have for this cartridge. Please include powder, primer, COL, and muzzle velocity. Thanks for the help.
     
  2. edenfies

    edenfies Member

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    Has no one shot the 240gr SMK in a 30-378??
     

  3. tonyo

    tonyo Well-Known Member

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    So I posted bascially the same question about 2 weeks ago except I am using Wby Mark V and it doesnt sound like there is much out there on this load???

    I started with 240 SMK, 104gr US869, CCI 250 primers, 3.718 Overall length, Wby brass, and have averaged 2825 ft/sec 10' off muzzle. Producing 1" groups or better at 100 yards. I was hoping for better velocity closer to 3000 ft/sec but I have not found the magic combo yet?

    I will be looking into H1000 powder to see if any potential exisist there, if anyone out there has experience please chime in.

    Thanks.
     
  4. canderson

    canderson Well-Known Member

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    I have a 30-378, and I am doing this from memory (please excuse any errors). My rifle is an accumark with a 1-10 twist. I believe a faster twist is need to shot the 240's. Sierra 210-220 and the berger 210, I believe are the heaviest reccommended for the 1-10. If you have any experience with shooting the heavier bullets with a 1-10 twist barrel please let me know.
     
  5. Marine sniper

    Marine sniper Well-Known Member

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    Have you tried Fed 215 primers ?
     
  6. MT4XFore

    MT4XFore Well-Known Member

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  7. tonyo

    tonyo Well-Known Member

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    Marine Sniper:

    I have been unable to locate any 215 primers until yesterday I found a thread on this website for a guy who is offering them for sale. I will pick some up if he has any left. Do you suspect I'll see significant improvement over the CCI250?
     
  8. Marine sniper

    Marine sniper Well-Known Member

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    I am not sure, but the 215 was designed for the big Weatherbys. I would expect a lot more velocity than what you are getting.
     
  9. edenfies

    edenfies Member

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    Here is a load posted on the reloaders nest. I don't know how much I trust these numbers, muzzle velocity looks too high?? Does anyone have any thoughts on this?

    [FONT=Courier New, Courier, mono]Load 10686 in caliber .30-378 Weatherby Magnum[/FONT]
    LoadID10686BulletSierra MatchkingBulletWeight240 grsPowderAlliant Reloader 25PowderWeight110 grsPrimerFederal 215Brass MakeWeatherbyBarrel Length27 (inches)C.O.L3.7 (inches)Velocity3300 fpsGroup0.5 (inches by 3 shot at 100 yds)Submitted Date9/25/2005 10:40:00 AMSubmitted ByStan StennettGun Info To compare to .300 RUMCommentAt to Lazzeroni Warbird Energy5791 ft-lbs TKO34.85 OGW3105 lbs IPSC PF 792
     
  10. Marine sniper

    Marine sniper Well-Known Member

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    Looks pretty fast, I would expect 3100 max from that barrel length
     
  11. AZShooter

    AZShooter Well-Known Member

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    Call Berger, Call Alliant, Call Hodgdon . In this day and age of cell phones with free long distance go to the source and get fast answers. I wouldn't trust that RL-25 load....3300 fps sounds way too hot.
     
  12. tomt

    tomt Well-Known Member

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    The predicted pressure is 98570 psi!!!!!!!
     
  13. jake50

    jake50 Well-Known Member

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    Bergers date for the 230 grn match
    230 GrainH100090.5272195.5285689% 37376 230 GrainVIHT N17093.5267998.7282292% 56937 230 GrainRetumbo94.0274899.0287591% 57278 230 GrainVIHT 24N41100.52723106.0288492% 57186 230 GrainH 50BMG101.02725106.5289197% 57247 230 GrainUS869106.02724111.5285197% 57605 230 GrainAA 8700106.02729111.52885101% 57554