The most dangerous thing in the world is a Sailor with a firearm because he likely doesn't know how it works. The closest I ever got to one in back in NTC SDiego boot camp back in '67 was a Springfield 1903 with the firing pin removed...though I did have some real experience with real ones in SERE school (but cannot claim to be a very good marksman). Sailors then were best at working the sliderules that Marines couldn't figure out in a thousand years--I suspect the same is true today with higher tech gear.
I’m just a little younger than you. Back in ‘77 in Navy boot we were drilling with M1’s with the firing pins removed. Got to shoot some really ancient M1911A1’s at the pistol range though!