I have a .308 AR-10 style rifle that I bought from an individual. Initially, it shoots great but after 40 rounds I begin to have light strikes on the primer. It appears the reason is the bolt is not moving forward completely and therefore not locking in completely. I can use the manual assist knob and push the bolt forward and the rifle fires fine. However, I shouldn't have to use the manual assist knob every shot when it gets hot.
I took the rifle apart, cleaned everything, and oiled/greased it up. Manually cycling the bolt there is a noticeable resistance as the bolt rotates into the locked position. The lugs on the bolt show a little wear (finish is missing) on the back side.
I am new to this style rifle and was wondering if anyone had any advice to help me improve the reliability.
tllstaco
I took the rifle apart, cleaned everything, and oiled/greased it up. Manually cycling the bolt there is a noticeable resistance as the bolt rotates into the locked position. The lugs on the bolt show a little wear (finish is missing) on the back side.
I am new to this style rifle and was wondering if anyone had any advice to help me improve the reliability.
tllstaco