For pistol and rifle barrels, how many rounds must be fired before accuracy begins to deteriorate? How can you determine how worn out a barrel is by examining it? - Quora
How does one destroy a gun barrel so that ballistics analysis can't link that barrel to a projectile recovered from a crime scene? - Quora
![How Many Rounds Can You Shoot Before a Barrel Loses Accuracy and is Worn Out? - The Truth About Guns How Many Rounds Can You Shoot Before a Barrel Loses Accuracy and is Worn Out? - The Truth About Guns](https://cdn0.thetruthaboutguns.com/wp-content/uploads/2019/05/fxn1.jpg)