No, you would not be breaking international law by having a firearm aboard a boat in international waters. Infact most boats that venture out that far have firearms on board.
I was on a boat that was boarded by the coast guard in international waters in the Caribbean. They asked where the hins were stored and checked the compartmet, saw the cases but didn't even open them up. They checked everyone's paperwork and safety gear and were on their way in less than 30 mins. They told us to be careful because there was allot of cocane smuggling going on in the area we were in.
No one gave 2 shits that we had guns on board
Ive been shooting a few different 9mm And I believe that’s what I’m going with. I’m locked in in a Glock 17 right. As everyone knows there aren’t many options out there right now everything! Is sold out or back ordered so. I like the Glock and it feels really good. And I feel confident with it. I’m not anywhere close to where I want to be but I’m not terrible neither. I have a lot to learn but at the same time I’m willing and continuesly research and reading up on things. So Glock 17 is on layaway and I will be grabbing it Tuesday when store opens