30mm on armor.

[Gunfreak]

So I assume the 30mm isn't capable of taking out say T-72, Abrahams etc.

But can it take out a T-55?

[AeriaGloria]

3 minutes ago, Gunfreak said:

So I assume the 30mm isn't capable of taking out say T-72, Abrahams etc.

But can it take out a T-55?

You have to be behind it, and shoot from high up, and get the rear top armor. HE won’t do anything. So if you’re using combat mix, completing killing one is way too much work. If you use all AP might be possible with a half dozen passes, but is possible with any gun ammo if you have full ammo and have already done 70-80% damage. 

[Mr_sukebe]

Main battle tanks are usually (exclude the Leopard from that) VERY well armoured on their front, vaguely armoured on their sides and fairly poor on the rear and top.

If you've going to shoot a the GAU 30mm at an MBT, shoot it in the top or rear.  On the front, it'll just bounce.

[AeriaGloria]

34 minutes ago, Mr_sukebe said:

Main battle tanks are usually (exclude the Leopard from that) VERY well armoured on their front, vaguely armoured on their sides and fairly poor on the rear and top.

If you've going to shoot a the GAU 30mm at an MBT, shoot it in the top or rear.  On the front, it'll just bounce.

Actually with full AP I wonder how it compares to GAU in game with Gsh-30-2K, 

from game LUA

Gau-8 AP: 

Dispersion: 0.0011

Veloxity dispersion: 0.006

360 grams 

 1080 m/s 

Gsh-30-2K:

Dispersion: 0.0005

Velocity dispersion: 0.0081

390 grams 

940 m/s 

If we use kinetic energy calculator, GAU-8 is 210 kJ and Gsh-30-2K is 172 kJ

the Gsh has less then half the dispersion but no PACS and causes lots of recoil, has 62% more velocity dispersion, and has 82% of the kinetic energy of the GAU-8 round, and 68% of the fire rate of the GAU-8. If combine the two, the GAU-8 puts out about 60% more kinetic energy per minute.

So if we compare to A-10 in DCS, we should expect those results. Apache is an offer comparison in DCS becuase it’s rounds actually have an armor penetration effect