Sharpshooter 10: Kill 3 Flying Birds With Three Consecutive Long Scoped Rifle Shots.
You will need to complete “The Sheep And The Goats” (Chapter 2) as a prerequisite for this challenge. And the reward is “Sharpshooter Gun Bait Available At Any Trapper”.
This guide will let you know how to complete this challenge in Red Dead Redemption 2.
This challenge is pretty simple; you have to find an elevated area with no obstacles or trees between you and the birds.
As soon as you spot a flock of birds, you will need to aim and use the Dead Eye to slow downtime. Then shoot them without missing a hit (use a Dead Eye tonic if necessary).