Hola, iam Vita Foran, I bid you good day, sir/ma’am.

What Is The Purpose Of Crowning A Gun Barrel? [Solved]

A target crown is machined into the muzzle to protect the rifling. This preserves and protects accuracy. If the very edge of the bore is nicked, scratched or damaged in any way, it will impact the dynamics of the bullet as it exits the muzzle.

The Importance of the Muzzle Crown for Accuracy Presented by Larry Potterfield of MidwayUSA

Even the finest rifles will shoot poorly if the

Tech Tip: Crowning and Chamfering a Muzzle

In this Tech Tip, Brownells

Crown Your Muzzle For Less Then 45 Cents With A Brass Screw And A Drill

this works extreamly well i have tryed on a .22 cal airrifle as well with amazing results so its a win in my books.