Barrel wear is the wearing away of a barrel bore and/or chamber surface through normal use by gradual mechanical means.

 

related:

• barrel erosion

 

Footnotes / Sources:

“Glossary ⇒.” Sporting Arms and Ammunition Manufacturers’ Institute. Ed. SAAMI’s Technical Committee. Web. 15-18 Jan. 2011.

 

Question:

• Are barrel wear and barrel erosion the same thing?