Im shooting a bull barrel savage axis 223rem that's got about 300rds through it. I purchased a hornady OAL tool and it says in the instructions to clean the chamber and make sure all carbon build up is gone or the tool will give inaccurate readings.
how do i know if i have carbon build up and how do i clean it out? where would this be in relation to looking through the barrel?
how do i know if i have carbon build up and how do i clean it out? where would this be in relation to looking through the barrel?