I have a 6.5 Grendel AR barrel that has an un-even throat. I did a cerrosafe cast of the chamber, and 2 or 3 of the lands seem to stop about 1/8" in front of the chamber neck, and a couple of the lands come back almost to the end of the neck. I can chamber loads that have the bullets seated back into the case a little farther than "normal', and they cycle ok, but if I seat them just a touch further out, they chamber, but the bullet is engaging the rifling enough to make it impossible to pull the bolt back.... I have to tap it back with a plastic hammer to open the bolt.
This cannot be conducive to accuracy, I would think...
My question is.... if I rent a finish reamer, or even a throating reamer, would I be able to even up the throat, perhaps even lengthen it a couple thousandths? Or, is this barrel more useful as a club?
This cannot be conducive to accuracy, I would think...
My question is.... if I rent a finish reamer, or even a throating reamer, would I be able to even up the throat, perhaps even lengthen it a couple thousandths? Or, is this barrel more useful as a club?