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Some notes on recent .50 update (reposted from 4.604 discussion).


Some people says, that while .50 damage at 100..200 m is ok, it should be significantly lower at greater ranges (400 m for instance).


But still - what is the real difference?

200m hit - 775m/s impact velocity, 22mm armour penetration

400m hit - 700 m/s impact velocity, 19mm armour penetration


Yep there is difference, but do you realy think that this difference is enough to say:

"It's ok to have explosion by hit at 200m and unacceptable to have explosion at 400m"



Some people says, that .50 bullet capability to kill the pilot have super-increased.


Just FYI:

109K backseat armour is 8mm,

armoured headrest 10mm,

armoured glass headrest is 60mm (means 8mm armour steel analog),

dural plate behing fuel tank is 20mm (means 5mm armour steel analog).


So as you see at 400m .50 is double-capable to penetrate any armour of 109K if hit strict from behind.


Using knowing nomogramm of .50 we see that even with 30° angleled hit we can penetrate 10mm at ~660m.

Only in case of hit angle 45° - 10mm can be penetrated only on 200m. But is it "only"? I suppose it's damn far for 45°.


For 0° hit angle .50 can penetrate 10mm at impressive 1100m range


All these aspects are taken in count in the game engine because bullets are physically in-time modelled objects with drag and mass, not "table-counted trajectory".



All these numbers are for ground tests offcourse. When you firing from one plane to another - everything will change. Even if the shoter and the target have the same speed - bullet-target relative speed will fall faster than equal absolute bullet speed in ground test (because bullet absolute speed in air test is higher and drag is higher even in case if bullet-to-target speed is the same).

From other hand, if altitude is great enough - drag is falling due to air density fall.

From third hand, if you fire with hight incline at high target - speed will fall much faster.

From fourth hand, if you firing at lower target (significantly lower one) - speed will fall much longer.



And offcourse, even after penetrating not too thick armour (if it is capable to) bullet loosing it's energy and capability to damage something behing the armour.

In case if bullet have penetrated the armour on the limit of it's capability - energy and damage behind the armour will reduce up to 4 times. So even pilot will have a chance to survive.

But when penetration capability is 2 times more tham armour thickness - energy loss and damage loss will be much less dramatic. It still will be , but much less.



Fuel tanks are the best bullet-stoppers (if bullets are not too large).

For instance: if tank hit by .50 from 200m, than 1..1.5m of fuel will stop bullet at all.Amount of fuel affects the probability of explosion.


And once again - there is no realy DRAMATIC change on .50 bullet mass or muzzle speed in 4.604.

Mass increased from 42g to correct 46g.

Muzzle speed - from 840m/s to correct 864m/s.

So muzzle energy have increased ONLY for 16%.

Bullet armour penetration at 500m increased from 15mm to 17.5mm.




Guys, any feelings about .50 become Death-Star pilot killer or something - is a kind of placeebo. Yes, it's capability have increased, but just a little.

But MAY be doubling of dispercion (due to new reading of the source data based on additional data providing) on M2.50 have increased the possibility of enemy pilot's back appear on one of the bullet's trajectory.


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