hello Magic!
Was a comparative between them. I tried to say that the mustang seems to be carrying less ammo than spit, and, in fact, it (mustang) carries much more. In previous version, 2.5.3; it was carrying much much more ammo than now. I could easily shoot down 3 or 4 planes before the ammo finishes, now, 2 planes are too much... keeping the same precision. Could be an error in previous version, like, carrying more ammo than the real version, but now, it's notable that the total amount of ammo changed.