Back to the Ming Dynasty to Take Out the Bad Guys

[Transmigration, ancient Ming China, taking up sniping, no System, no golden finger, gold prospecting, bandits and brigands, making land mines, one part saltpeter, two parts sulfur, three parts charcoal, with sugar added to make a Big Ivan] Is it travel between parallel worlds, or just a dream? Everything feels so real. See how Du Xiaotian accidentally finds himself back in the Ming dynasty. The protagonist has no System, no golden finger, and is just an ordinary person with a little bit of modern loser knowledge… If you and I really were transported to the Ming dynasty, what would we know, and what would we do…