In front of first convoy, help...

[Agrajag]

Guys, got swamped with work and was away for a while. Got back into the sim and ran into my first convoy. I'm only running at 40% realism to get re-acclimated but it appears as if I've forgotten many basics (I never did get into manual targeting but might this time).

Anyway, I managed to take out the lead destroyer with one torpedo and then hit a T3 with tube 2 and 3, another T3 with tube 4 and a C2 out the rear with tube 5.

NONE of them went down and none were even slowed.

Worse, I've now been running frantically ahead of the convoy for hours and the battery is now down to 50% but the damned torpedos won't reload. Auto-reload is on but they just stay red. Am I just not waiting long enough?

I also assumed I'd need to go back to get one or two of the targets but to not have even slowed any of the 3 is pretty disappointing (in general, not in any way a negative with the game).