@ maerean_m
So the automatic targeting is giving you correct convertion to yards

, now, that's a good news for those skippers who use automatic. I have never used automatic targeting in sh4 (or sh3), only manual.
@sayaret
Did you find out how to get the right distance from your sonar operator? Diving deeper and pointing the target yourself in the hydrophone station? It is rubbish, that you cannot double check your range to target from the periscope depth just before you attack. Or then I am just using something wrong.