Talk:120mm Twin Gun Mount/@comment-49.145.95.14-20150826142445/@comment-82.53.166.59-20161120135504

IRL the Italian 120/50, in respect to the Japanese 127/50, launched an heavier projectile (23.5kg  vs 23 kg) at an higher muzzle speed (920 m/s vs 915) so delievering more punch. The projectile with the lesser calibre and the higher weight had the higher sectional density, so it lost less speed during flight, increasing the difference in his favor as the distance increased, infact the 120/50 had 1.2km more range.

The Japanese 127/50 had instead more elevation (70° vs 45°) that made it a better dual purpose gun.