re: What does the phrase “aim small, miss small” mean?

quote:

---

Within the context of the movie, the boys are good, practiced shots. I don't think that mantra makes a lot of sense to them at that point.

---

It’s highly doubtful the boys ever fired at people before and their father knew they would be very nervous. He reminded them they still need to take their time and aim well, bullets don’t magically find their target.