Hello everyone,

I picked up a C308 from Cabelas awhile ago and brought it home for an inspection, here's what I found. The bolt is 1.834, locking piece appears to have some galling on shoulders, firing pin and spring are fine. I checked my bolt carrier and someone has ground off an eighth of an inch to create my cocking tube gap. Finally, I checked bolt gap and its at .007, which is low but in spec. I've taken it to the range and ran 60 rounds of chinese copper washed NATO and it ran flawlessly. Rifle cocked and cycled fine, just shoots about 8 inches high at 100 yards.
My question is how should I start off to fix bolt gap with a ground carrier. Are their any experts that can give me a solution. I hate to mess with this rifle since it actually works correctly. Thank you.