Got into the arena, took off in a nik (yeah yeah I know) and bounced a low con. Lined up on him at 400 and realised I had no gunsight.
Tryed a bit of spray & pray but seemed my shells were now hitting VERY high.
Checked head position, diff gunsight, nothing changed it.
I have either a blank gunsight, or a line down the center but here's the funky part.
Finally found a quiet field, tried the .target 200. command.
Put plane in what I thought was center.
Bullets hit in next to the last right on top.
In the Nik bullets hit halfwar between the TOP of the gunsight & the top cockpit bar.
Convergience was still set at default, under 300 for both.
Seems the nik is not resizing the sight to fit in the sight glass.