Sharpshooter 1: Kill 3 Flying Birds.
The prerequisite of this challenge is to complete Chapter 1. It’s reward is “Sharpshooter Bandolier Available At Any Trapper Prerequisite”.
This guide will provide you with the method to complete the Sharpshooter 1 challenge in Red Dead Redemption 2.
For this challenge, you just have to reach an open area, look at the sky and kill three birds.