In article ,
Peter Kemp peter_n_kempathotmaildotcom@ wrote:

Or we could look at the specs

BK27
100kg
ROF 1770 rpm
Muzzle Velocity 1025m/s

GAU-12/U
123kg
ROF 4200rpm
Muzzle Velocity 1036m/s (API)
Muzzle Velocity 1085m/s (TP, HEI)

SO the major differences a

BK has more muzzle energy
BK is lighter
BK has ballistically matched ammunition so a consistent aimpoint
BK round is more destructive
BK round will hold it's energy for a further distance
GAU has a higher ROF.

So tell us again why the Mauser is an inferior weapon?

BK has higher specific recoil (28 versus 22 kN), so needs much more
reinforcement of airframe, negating weight difference

GAU has a *much* higher rate of fire, so much higher chance of actually
hitting the target

While a single BK round does slightly more damage, it doesn't do twice
as much damage, so firing rate is too slow

BK has about twice the barrel wear at full fire rate

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