238, barely satisfactory

"Does Zhao Douan understand firearms? Frankly speaking, he doesn't know much.

After all, this was not related to the 'profession' he had in his previous life, but... somehow he knew more than ordinary people.

It was thanks to his involvement in the affairs of an ancient military museum due to his job, which, through the 'convenience of his position,' allowed him to closely understand the entire developmental history of firearms.

Beside him, there was a professor-level expert explaining.

Thus, he became interested and further looked through some books and materials. Initially, he just saw it as knowledge to curry favor with his leaders.

Little did he expect that there would be a use for it in the future...

'Indeed, knowledge that seemed useless at the time will, at some moment in the future, cross time and space to strike you...'