Yeah, just tap it after breaking off, keeping track of the convoy from a distance and waiting for it to arrive on your position
Personally I've sunk HMS Nelson, I hit it six times, though afterwards I was told I only needed about 3 max, but then I encountered HMS Rodney, after putting 3 into it I kind of bottled because it didn't look like sinking, and hit it a forth time and it sank immediately
Anyway, even if you try a spread you may hit but will likely need to attack again later so it's best to be patient and keep hold of your Torpedo's
Make sure you're hitting a steady, unassuming target
Then sink the last escort and get the deck gun out for the turkey shoot
