Understanding bullet trajectory and the math behind shooting at an angle is a great tool to add to your precision shooting skill set.
Running pistol throttle control drills helps test your patience and accuracy by forcing intermittent pace changes during courses of fire.
Relevant, real-world training challenges shooters at the Grey Group LE Basic Sniper Course, imparting valuable experience to operators.
Run the Rifle Sling Load Drill to consistently and efficiently go from unloaded, slung Rifle to unslung, loaded rifle.