From personal experience, hitting out on blue water can be hard and itakes a LOT of practice. It's more feel than science. Both you and your target are moving different, semmingly randon directions.
There are other consierations. AK's, for instance pump their steel casings all over the place, they can get into a cable winch mechanism and other stuff and cause priblems. If you miss one, you'll find it sometime later by the rust streak that's it's leaving.
Once again, Andy, alters the facts and inserts some information that was not in the original discussion. It's the stuff like this that destroys Andy's credibility.
For anyone that is interested in the FACTS about what Andy is trying to babble about, check out Storm Mountain Training Center. Contact them and ask about what courses they offer and about water bourne exercises. (at least I think it was SMTC that did the water bourne course. They offer custom classes too. If not, then HardRock can elaborate)
That way you don't have to take ANYONE's word on the matter, but can get it straight from the source.