Which Gunsmithing Techniques Improve A Rifle's Accuracy?

Trigger Tuning

Trigger tuning is a crucial step in improving a rifle’s accuracy. A well-adjusted trigger pull weight can make a significant difference in shot placement. The ideal trigger pull weight varies depending on the rifle and shooter, but a weight of 2-3 pounds is a good starting point. Gunsmiths can adjust the trigger pull weight by adjusting the trigger spring tension or replacing the trigger components. For example, a Remington 700 trigger can be adjusted by turning the trigger screw counterclockwise to lighten the pull weight.

Action and Bolt Work

A polished bolt face and action surfaces can significantly improve a rifle’s accuracy. Dirt, grime, and residue can cause the bolt to bind, leading to inconsistent chambering and firing. Gunsmiths can polish the bolt face and action surfaces using a fine-grit media, such as a diamond stone or a ceramic honing media. The action surfaces should be polished to a mirror finish to ensure smooth operation. For example, a Remington 700 action can be polished using a 600-grit diamond stone to achieve a high-luster finish.

Barrel Work

A high-quality barrel is essential for improving a rifle’s accuracy. Gunsmiths can install a new barrel or refurbish an existing one using techniques such as chambering, crowning, and chamber polishing. Chambering involves cutting a precise chamber in the barrel to ensure proper cartridge seating. Crowning involves cutting a sharp, precise edge on the muzzle to reduce lead fouling. Chamber polishing involves polishing the chamber to a high-luster finish to ensure smooth operation. For example, a barrel with a .002-inch chamber tolerance can improve accuracy by 50 yards or more.