uk (Tony Williams)

snip

The merits of the 27 mm BK 27 revolver as opposed to the M61A1 can be
clearly demonstrated. In the first 0.5 seconds of firing, the M61
fires 18 rounds massing 1.8 kg in total weight of projectiles, the BK
27 fires 14 rounds weighing 3.7 kg. In the first full second, the M61
fires 68 rounds weighing 6.9 kg, the BK 27 fires 28 rounds weighing
7.4 kg. In weight of fire, as well as the destructiveness of the
individual projectiles, the Mauser clearly has an advantage, albeit
one that the faster-accelerating M61A2 reduces somewhat.

You shoot your own argument down. The BK27's projectile weight has no effect if
you don't actually strike the target. A 27 mm projectile that misses is not as
efective a 20 mm projectile that hits. In your example above the M61 has more
projectiles in the air at any given time than the BK27 giving a greater
probable hit with the M61.

Dan, U. S. Air Force, retired