In my army service I first had an M16 and M16 A2.
During my basic training I got to shoot a 7.62MM FN Mag and got to throw a live granade.
After I finished the army I worked some time at a security company and had a 9MM FN pistol.

I have to admit that before the army I was kind of nervus about shooting but after the basic training it didn’t seem much.
I am really glad I got to expriance shooting 50 bullets on the machine gun (7.62MM FN Mag).
Shooting with the Mag felt like those old arcade video games where the whole machine shivers when you shoot..