I can confirm that - my uncle was in such a club at school. He, however, didn't take the subway - he walked to school, carrying his gun the entire way. Somehow, neither he nor any of his fellow club-members shot anyone, even by accident.
We are living in a thoroughly pussified society. God help us.
NYC Public school rifle clubs— I also can confirm this. My school, in Manhattan, all male, had students from all 5 boroughs. Rifle club members came to school on public transportation, bus, subway and ferry, CARRYING their encased rifle. After school they would travel, on public transportation, to other schools for rifle meets. No fuss, no muss. The “rifle range” was in the basement of the school. A great movie , pointing out teenage troubles at the time, “Blackboard Jungle”. Glen Ford, Vic Morrow,Sidney Portier(Black guy is the “good guy”)