How much different will my gun shoot

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by Ultramag45, Sep 24, 2008.

  1. Ultramag45

    Ultramag45 Well-Known Member

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    I am going to Wyoming in a week.. I shoot a 338RUM zeroed at 300yds.. 400 yds about 9 inches low 500 is about 25inches low.. this is all at sealevel... How much different is this gonna be at 7000-9000 feet. Is it just a couple inches high or is it drastic,,, I use a leupold with B&C reticle, it is right on the money. I wont have time to really doa chart or anything... is there a table out there with this info, I wont be shooting over 600 yds..... Any info or personal advice would be great
     
  2. Eaglet

    Eaglet Well-Known Member

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    We would need more info., like bullet weight, muzzle velocity, are you using factory amo?

    You can also go here and use this online application to create drop tables.
     

  3. Ultramag45

    Ultramag45 Well-Known Member

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    I am shooting 225gr Accubonds, 3150fps. handloads 93 gr of rl22 fed 215 primer.. Hope this helps
     
  4. Ultramag45

    Ultramag45 Well-Known Member

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    Is this drop chart very close.. checked it out. it isnt much different out to 500 or so.... an inch or 2 higher.. Have you used this before... Thanks
     
  5. ICANHITHIMMAN

    ICANHITHIMMAN Well-Known Member

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    I punched it into my program for you with everything you quoted I ran it through with an avarage temp of 50 deg F with 300yd zero

    300yds ZERO
    350yds up 4 moa
    400yds up 8 moa
    450yds up 13 moa
    500yds up 18 moa
    2000yds up 391 moa

    hope it helps
     
  6. Eaglet

    Eaglet Well-Known Member

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    UltraMag45, (Trace 1) is for altitude = 0 and (Trace 2) is for altitude = 8000 ft. You'll find out that about 750 yards or so you can miss a whole deer just due to altitude change.

    Notice that by just moving your rifle to 8000 ft of altitude, your zero is not any more at 300 yards; now it's at 308 yards and at 300 yards you're almost 1/2" higher which is the beginning of larger changes as the distance gets longer.

    If you measure the scope height (from center of bore to center of scope) I'll do my best to make a drop chart for you.

    [​IMG]
     
    Last edited: Sep 26, 2008
  7. Ultramag45

    Ultramag45 Well-Known Member

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    I believe it is standard 1.5......remember i am not using clicks as I have the b&C reticle. just wondering how many inches difference it would be from 400 to 600 yds than sea level... at 400 my gun drops around 9- 10 inches. 500 it is 24-26inches.. 600 46-48inches.... thanks
     
  8. Eaglet

    Eaglet Well-Known Member

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    The drop chart above has been fixed to where you can compare bullet path at sea level and 8000 ft altitude all the way to 1000 yards. It's all in inches. That was done for 1.7" scope height.
     
  9. Ultramag45

    Ultramag45 Well-Known Member

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    WOW, thnaks for the info, Where did you get all of that stuff from... very valuable... I see it really changes from 400 out.. Now does your velocity go up at higher elevatons too, or is that figured in.. I have heard you can go up 50 -80fps at higher elevations as well.. thus making poi different... Again thanks for taking the time to help me out with this... I will probabily see the big buck at 200 yds and forget everything...... :)gun)