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Armory »  50 Cal »  trajectory of .50 bmg  
0 paltik :: 7/5/2005 8:52:57 PM EDT
    can you pls. help me locate sites where there is available data re: .50 trajectory...(external ballistics of .50 etc..) thank you
1 Jeep29 :: 7/5/2005 10:21:42 PM EDT
    There are none. I've been looking myself for about 5 years and they just aren't out there. The best you'll do is get lots of links to ballistic calculators. If you do find something we'd all appreciate you sharing.
2 Zak-Smith :: 7/6/2005 12:19:36 AM EDT
    2.3" sight over bore
    1000' density altitude
    Here are two typical loads:


    _Bullet_ _BC_ _MV_ 0 250 500 750 1000 1250 1500 1750 | YARDS
    750gr AMAX 1.050 2660 > -2.30 -6.47 -46.68 -129.32 -262.20 -454.93 -719.36 -1069.97 | drop (inches)
    -0.00 2.47 8.92 16.47 25.04 34.75 45.80 58.39 | drop (moa)
    0.00 1.99 8.27 19.37 35.94 58.66 88.29 125.60 | wind (inches)
    0.00 0.76 1.58 2.47 3.43 4.48 5.62 6.85 | wind (moa)
    647gr M33 Barrett 0.701 2900 > -2.30 -5.18 -40.73 -117.87 -248.63 -449.47 -742.61 -1157.02 | drop (inches)
    -0.00 1.98 7.78 15.01 23.74 34.34 47.28 63.14 | drop (moa)
    0.00 2.68 11.35 27.15 51.49 86.01 132.42 191.90 | wind (inches)
    0.00 1.02 2.17 3.46 4.92 6.57 8.43 10.47 | wind (moa)


    Give me the bullet, MV, and environmental conditions and I can get more specific data.

3 paltik :: 7/6/2005 2:16:03 AM EDT
    thank you very much!!!! how about the regular .50 BMG military ball ammo specs? pls. help thank you again!
4 50_Shooter :: 7/6/2005 2:46:51 AM EDT
    The latest issue of VHP has a bunch of tables listed, go to the FCSA website to get the info on ordering it and becoming a member.

    www.fcsa.org

5 Zak-Smith :: 7/6/2005 12:51:53 PM EDT

    Originally Posted By paltik:
    thank you very much!!!! how about the regular .50 BMG military ball ammo specs? pls. help thank you again!


    It will be close to the M33 data above.

    Like I said, give me a MV, BC, and environmental conditions and I'll get another table...
6 GI_Brat :: 7/6/2005 1:05:05 PM EDT
    tacked!
7 akconvert :: 10/23/2005 9:46:22 AM EDT
    Do you know what the ballistic co-efficient of the API bullets are?

    Would knowing this allow me to just plug the numbers into any ballistic calculator?
8 RyJones :: 12/12/2005 4:50:41 AM EDT
9 KevinUSP :: 1/31/2006 12:48:14 PM EDT
    what would the drop be for a 750 amax out of a 30 inch barrel zeroed in for 300 yrds, give me the drop in inches.
10 RyJones :: 1/31/2006 1:15:46 PM EDT

    Originally Posted By KevinUSP:what would the drop be for a 750 amax out of a 30 inch barrel zeroed in for 300 yrds, give me the drop in inches.



    feel free to download modern ballistics, linked above
11 kavik :: 4/15/2006 1:42:37 PM EDT
    I have a barrett 82, shoot mainly surplus/reloaded 690g ap ammo. My scope has a bdc, but the first setting is at 300 yds, where it is supposed to be sighted in. I currently have access only to a 100 and 200 yd range, any idea where my bullets should hit at these distances to be matched zero at 300?
12 timeless :: 4/19/2006 7:04:44 AM EDT
    I have the same questions as Kavik, The top of the tree shows 300 yrds.; think the bottom is at 1800

    I sighted in by guessing where the 100 mark would be. It would be great to know how high the group would be in inches using the 300 mark on the scope.
13 Zak-Smith :: 4/19/2006 11:08:59 AM EDT
    If the sight over bore distance is 2.6" (check?), then sight in ABOUT 4" HIGH at 200 yards, using the 300 yard stadia line. (At 100, it would be ABOUT 3" HIGH). This should put you "on" at 300 using the 300 yard line.
14 kavik :: 4/21/2006 12:43:20 AM EDT
    Thanks Zak! Can't wait to gice this scope a try (it's not the Barrett one!). Made for the Raufoss round, so the bdc dial will be off a bit, but it has intermediate "clicks", so I'll just work dope up -
15 nf9648 :: 8/16/2006 7:35:32 PM EDT
    Id like to see a write up on the differences in velocity and energy between the standard M82A1 and the CQ version using military ball, AP, and API loads out to 1500m or more. Also like to see how far the CQ version will punch through steel plates at distance.
16 GaryM :: 11/18/2006 9:31:04 AM EDT

    Originally Posted By Zak-Smith:
    2.3" sight over bore
    1000' density altitude
    Here are two typical loads:


    _Bullet_ _BC_ _MV_ 0 250 500 750 1000 1250 1500 1750 | YARDS
    750gr AMAX 1.050 2660 > -2.30 -6.47 -46.68 -129.32 -262.20 -454.93 -719.36 -1069.97 | drop (inches)
    -0.00 2.47 8.92 16.47 25.04 34.75 45.80 58.39 | drop (moa)
    0.00 1.99 8.27 19.37 35.94 58.66 88.29 125.60 | wind (inches)
    0.00 0.76 1.58 2.47 3.43 4.48 5.62 6.85 | wind (moa)
    647gr M33 Barrett 0.701 2900 > -2.30 -5.18 -40.73 -117.87 -248.63 -449.47 -742.61 -1157.02 | drop (inches)
    -0.00 1.98 7.78 15.01 23.74 34.34 47.28 63.14 | drop (moa)
    0.00 2.68 11.35 27.15 51.49 86.01 132.42 191.90 | wind (inches)
    0.00 1.02 2.17 3.46 4.92 6.57 8.43 10.47 | wind (moa)


    Give me the bullet, MV, and environmental conditions and I can get more specific data.


    Not to doubt you but are you sure that BC is correct? It seems awfully high to me.
    Thanks!
17 Radiant556 :: 5/14/2007 6:32:26 PM EDT

    Originally Posted By nf9648:
    Id like to see a write up on the differences in velocity and energy between the standard M82A1 and the CQ version using military ball, AP, and API loads out to 1500m or more. Also like to see how far the CQ version will punch through steel plates at distance.


    I'll work on that, since I have a CQ and have access to a 107.
18 Max-Paul :: 7/28/2007 10:07:04 PM EDT
    If you are doubting the the BC for the AMAX 750 gr, then rest assure that I too looked it up a week ago and 1.05 is correct. As for the 647gr bullet. I do not know so I can not claim or disclaim that this number is correct.


    Originally Posted By GaryM:

    Originally Posted By Zak-Smith:
    2.3" sight over bore
    1000' density altitude
    Here are two typical loads:


    _Bullet_ _BC_ _MV_ 0 250 500 750 1000 1250 1500 1750 | YARDS
    750gr AMAX 1.050 2660 > -2.30 -6.47 -46.68 -129.32 -262.20 -454.93 -719.36 -1069.97 | drop (inches)
    -0.00 2.47 8.92 16.47 25.04 34.75 45.80 58.39 | drop (moa)
    0.00 1.99 8.27 19.37 35.94 58.66 88.29 125.60 | wind (inches)
    0.00 0.76 1.58 2.47 3.43 4.48 5.62 6.85 | wind (moa)
    647gr M33 Barrett 0.701 2900 > -2.30 -5.18 -40.73 -117.87 -248.63 -449.47 -742.61 -1157.02 | drop (inches)
    -0.00 1.98 7.78 15.01 23.74 34.34 47.28 63.14 | drop (moa)
    0.00 2.68 11.35 27.15 51.49 86.01 132.42 191.90 | wind (inches)
    0.00 1.02 2.17 3.46 4.92 6.57 8.43 10.47 | wind (moa)


    Give me the bullet, MV, and environmental conditions and I can get more specific data.


    Not to doubt you but are you sure that BC is correct? It seems awfully high to me.
    Thanks!

Armory »  50 Cal »  trajectory of .50 bmg  
 
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