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Thread: velocities 243 308

  1. #1

    velocities 243 308

    just chrono my 2 main loads 70 grain ballistic tip 3325fps and 150 interloc 2750 fps. these loads are both really accurate and do the biz. are these velocity figures about right or fast or slow from 20" barrel

  2. #2
    The 308 sounds about right. factory stuff is around 2800 fps. Dont have a 243 but google should be able to put you right.

  3. #3
    i get 3400 from my r93 .243 with 40gn h3895, think its about 22"

  4. #4
    im using 39gn h4895 40gn flattened the primers the 308 is using 45gn h4895

  5. #5
    Just out of interest I put the figures in the a ballistics calculator.

    Pete your .243 load at 3325 just makes the deer legal muzzle energy requirement.

    Gary your .243 load only makes 1027 ft/lb so presumabley is for fox only as the bullet is less than 50grns so also not suitable for small deer.

  6. #6
    Quote Originally Posted by 8x57 View Post
    Gary your .243 load only makes 1027 ft/lb so presumabley is for fox only as the bullet is less than 50grns so also not suitable for small deer.
    i assumed he meant 40gn of powder 70gn bullet

  7. #7
    Silly me, I'd better put my spectacles on So that would make it 1797ft/lb, easily within the required standard.

  8. #8
    yes, 70gn and they come in varmint packets of 250 so very much deer legal

    pete, the primers are supposed to be flat!

    the man in the bullet shop reccomends them for chest shooting fallow but i'm not convinced about that.
    Last edited by Offroad Gary; 12-10-2010 at 21:23.

  9. #9
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    Quote Originally Posted by Offroad Gary View Post
    pete, the primers are supposed to be flat.
    Eh?

  10. #10
    Quote Originally Posted by Tamus View Post
    Eh?
    thats how you tell that you've got the right amount of pressure! pressure = velocity. velocity is good! isnt that why we use varmint ballistic tips on deer? lots of internal damage and no exit wounds.

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