? on bullet drop at 600yds

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by GEG, May 17, 2003.

  1. GEG

    GEG Well-Known Member

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    My 6.5-300 Weatherby shot in dead on at
    100 yds will drop 46" at 600 yds. I have
    a 17lb. rifle that is very pleasant to
    shoot. No brake is needed using only
    83grs. of H870. What would I have to go
    to caliber wise in order to shoot say
    6" to a foot or more flatter? GEG

    [ 05-17-2003: Message edited by: GEG ]
     
  2. Guest

    Guest Guest

    SLAP really is a 4 letter word, remember you heard it hear first. [​IMG]
     
  3. Michael Eichele

    Michael Eichele Well-Known Member

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    Can I ask what kind of load you are shooting?

    According to my math, you need a bullet with a BC of .525 @ a velocity of 3600 FPS at sea level at 59 degrees with a 100 yard zero and 46" of drop at 600 yards.

    I dont know of much that will do better than that.
     
  4. MachV

    MachV Well-Known Member

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    Just for kicks run 4450fps through your calculator with 250grain(BC.450)Barns.My calculator & field experience says 29" @ 600!
    Got a couple of gentlemen working on a .7-.8BC bullet that should realy fly flat.Now if I can get them to group a little better?????
    SLAP is not a new word Sam....unless you got one that groups????Quit teasin us and explain
     
  5. Michael Eichele

    Michael Eichele Well-Known Member

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    LOL!!!!
     
  6. GEG

    GEG Well-Known Member

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    S1, I do not understand SLAP! This rifle
    was built for me by Ray on a 700 action
    and a 30" Mike Rock 5R barrel. My career
    Navy son and I put this rifle thru its
    break in and that is what it did. I
    was not sure if 46" was good or bad for
    a fast 6.5 142gr SMK with 83gr of H870
    as we never had a 6.5 before. I ask the
    question looking for an answer so as to
    determine where I was at on a "flat
    shooting" scale not to be funny. Thanks
    for the info guys. GEG
    be
     
  7. Kevin

    Kevin Well-Known Member

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    I am not sure on what the actual velocity of this could be but how about taking that down to a 6mm and shooting 105 amax or berger vld at 4000fps should give you at least a foot better at 600.
     
  8. MachV

    MachV Well-Known Member

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    Was not realy trying to be funny just giveing an example of what can be done with a different caliber & powder range.The 375/50BMG MachV is flater but at a greater cost of powder,Brass & recoil.
    Your figures are about what I am hopeing for with the 6.5WSM when it arrives but hope to get to 1500yards with it.
    A long range prairie dog trip in late June will shed a little more light on the 6.5 as there will be a 6.5Winmag,6.5-284,6.5-06 & a 6.5WSM represented.
    CJ
     
  9. MOA

    MOA Well-Known Member

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    SLAP is for the 50BMG. The reason I know is because I own one. I had a chance to buy some for $35.00 a pop but decised to pass. The 750 AMAX with BC of 1.05 is just fine for me at 2700 FPS. Check out the link.. http://www.biggerhammer.net/barrett/fas/slap.htm
     
  10. MOA

    MOA Well-Known Member

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    I forgot to mention that you can load a 30 cal sabot in in .50 and get the same trajectory, like a laser..
     
  11. tonlocus

    tonlocus New Member

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    Just zero at 250 (1.3" high at 100)instead of 100 and that will give you 10" higher at 600.
     
  12. Guest

    Guest Guest

    GEG.....Sorry, I never meant to offend you. I think your rifle shoots very flat relative to most. I was actually paying you a compliment, by implying that to get much flatter than what you are already shooting, you would have to go to a different technology which employs the use of a Sabot for increased cross sectional area to gain velocity. There is a type of ammo used in 50 cals called SLAP which uses a sabot and a long narrow tungsten projectile fired at near 5,000 fps. and flies rather flat relative to what you and I shoot for hunting and other targets.
     
  13. GEG

    GEG Well-Known Member

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    Thanks for clearing that up for me. I never
    have had any dealings with 50cal. stuff
    so did not know what it was. As far as
    the 6.5-300 Weatherby goes, it looks like it is going to be a flat shooter that will take
    deer size animals down a lot further than
    I can hold it. Thanks to DC for putting me on to it. Anything flatter would as you
    say be moving into an area I do not need to
    go. The 17lb. part is going to be a real
    trip to pack when I need to use it for
    hunting but at least I will know I do not need to get close(inside 600yds) with this rig! THANKS GEG
     
  14. Guest

    Guest Guest

    Geg,

    Using almost 1/2 the powder charge your using (44gr of 4064) in my CHeetah with a 100 yard zero I have to adjust my elevation to be 7" high at 100 to be on at 600 yards. Thats 42" at 600 yards if I am not mistaken.

    Don