I played a bit more now...
It seems when it comes to weapons that require leading, I am not very good. AC/20 and AC/5 have similar accuracy.
Interestingly, I can do better with SRMs, that may be because I don't try to take shots at the ranges I'd fire an AC/20 or AC/5.
Though I can't complain, my AC/20 hits give me 20.5 damage per AC/20... THat's abit more than it should.
The AC/5 seems to give me exactly 5 points damage on every hit. I wonder if the AC/5 projectile size is any different than that of the AC/20? If so,
My SRM6 give me 2.32 damage per hit on average, which is also a bit more than it should.
It's about 2.34 for the SRMs, by the way.
Oh, for fun, my rate of fire (rounded to seconds)
AC/20: 23 seconds per shot on average.
Medium Laser: 8 seconds per shot
Large Laser: 6 seconds per shot
PPC: 6 seconds per shot
AC/5: 58 seconds per shot
SRM6: 3 seconds per missile (boils down to 18 missile salvos per second.)
Of course, a mech that has 1 AC/20 can easily have 4 medium lasers... So I suppose the times actually boil down to very similar numbers if you consider the number of weapons typically equipped.