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7.62x51(308) ballistics??

 
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  #8  
Old 07-02-2010, 12:27 PM
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Join Date: Jul 2009
Posts: 120
Re: 7.62x51(308) ballistics??

Tough to shoot drop data without stretching it out a bit (400 yards +). I have no info on your specific ammo, but If you punch in 2800fps and use a .380 G1 BC it should get you on paper when you can stretch it out a bit.

Once you have the real speed and the real drops at a longer range, just tweek the BC in your program until it matches what your rifle does at the ranges you shot and then you will know the BC and your chart will be good to go.

I build drop dials as part of my work and many bullet/load combinations require a BC other than whats published to get an accurate set of drops..
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  #9  
Old 07-02-2010, 12:57 PM
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Join Date: Feb 2010
Posts: 192
Re: 7.62x51(308) ballistics??

You mentioned it is a battle pack. From South Africa maybe?

Anyway it is loaded to NATO 7.62x51 spec and you can go to wikapedia and look at the specs or google Nato 7.62x51 and there are lots of references.
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  #10  
Old 07-04-2010, 12:45 PM
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Join Date: Dec 2009
Posts: 20
Re: 7.62x51(308) ballistics??

Box says:

AB22
20 PATRONE,
7,62MMx51, DM111
Weichkern

LOS DAG95E0327
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  #11  
Old 07-04-2010, 01:04 PM
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Join Date: Feb 2010
Posts: 192
Re: 7.62x51(308) ballistics??

Google is a great starting point for ID questions, try this:

7.62 Nato ammo ID - THR
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  #12  
Old 12-14-2011, 02:02 PM
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Join Date: Jul 2011
Posts: 19
Re: 7.62x51(308) ballistics??

If anyone is interested in this long dead thread, I have chronoed a few different lots of this ammo out of a 20 inch Larue OBR rifle (7.2x51):

Chrony on surplus ammo from Germany (DAG and MEN)

Here is the data:

AB 22, 20 Patrone, 7,62MMx51, DM111, Weichkern, LOS DAG93D0340

String 1 - 10 Shots:

Low: 2656.34 (ft/sec)
High: 2679.87
Adv: 2669.19
Variation: 23.53 (ft/sec)
SD: 7.93

1: 2678.09
2: 2673.95
3: 2672.77
4: 2679.87
5: 2669.82
6: 2657.51
7: 2671.00
8: 2662.19
9: 2656.34
10:2670.41

String 2 - 10 Shots:

Low: 2657.51 (ft/sec)
High: 2697.78
Adv: 2675.41
Variation: 40.27 (ft/sec)
SD: 12.32

1: 2688.20
2: 2685.22
3: 2669.82
4: 2657.51
5: 2680.46
6: 2670.41
7: 2697.78
8: 2673.36
9: 2667.47
10:2663.94

AB 22, 20 Patrone, 7,62MMx51, DM111, Weichkern, LOS MEN94F0008

String 1 - 10 Shots:

Low: 2688.20 (ft/sec)
High: 2736.20
Adv: 2707.75
Variation: 48.00 (ft/sec)
SD: 14.38

1: 2688.20
2: 2708.65
3: 2698.39
4: 2709.26
5: 2696.58
6: 2718.99
7: 2964.78
8: 2736.20
9: 2720.22
10:2706.23
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