I was flying yesterday in an F4U-D,attacked an F4U-D model, it pulled in a hard right turn I was above & to the right of it so it turned into my line of fire, I pulled the trigger @ around 450 yards & my convergence was set @ 425 yards, I raked it from the prop to the tail with about 100 rounds with the greatest majority of those rounds (I'd guess 60 or 70 of them) in the engine & cockpit. All 6 guns are set to the same convergence, & there was no hint of damage,no smoke,no pieces of plane coming off. And the pilot apparently never got wounded as the engagement took place a good 5 minutes from the nearest base,& he flew on dogfighting other people for 5 minutes after that. I say thats unrealistic.