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Incorrect muzzle velocities?

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*Note: I'm not talking about barrel length affecting velocity*

When I go through the configs I see some muzzle velocities seem to be correct, ie:

30rnd 5.56x45mm = 930 m/s

30rnd 5.45x39mm = 900 m/s

10rnd 12.7x99mm = 850 m/s

10rnd .338 Lapua = 936 m/s

All the velocities above correspond to the "official" velocities for standard rifles, or are very close to them.

However, some velocities seem to be quite incorrect. Here are some examples:

10rnd 7.62x54mm = 870 m/s [in all sources, the SVD's muzzle velocity should be 830 m/s with standard 7N14 sniper ammunition]

100rnd 7.62x51mm = 900 m/s [this is WAY to fast for standard 7.62 ammunition. It is loaded to about 855 m/s]

5rnd 7.62x51mm = 900 m/s [again, way too fast, standard M24 ammunition goes 800 m/s at the muzzle]

5rnd 12.7x99mm = 936 m/s [WAY too fast, the AS50 ammunition uses the same muzzle velocity as the .338 Lapua. If anything it should be 850 m/s or slightly slower, it has a shorter barrel than the M107]

I also noticed this has occurred in ArmA III, the .50-caliber Gepard Lynx was given a muzzle velocity of 1,114 m/s!

Some people have actually chronographed the Lynx and the ammunition was going 780 m/s. That is a truly massive disparity between game values and real-life values...

Anyways, just food for thought...

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Lynx uses 12.7x108 and its not the same as NATO 50 completly other ammunition. There are few things that were made bad in arma:

-in OA lapua has same airfriction as 50 cal (what!?)

-there are 2 types of 50 cal they have diffrent airfriction but same init velocity

-in A3 12.7x108 has same airfriction as 12.7x99

-that 1,114 m/s velocity is feasible couse its saboted round however lynx is not using APDS rounds in reality

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I can't remember whether or not there's a mod to fix this, but I'm sure I saw one earlier today. If there isn't, it'd be really swell if someone could make it.

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