After around 200 rounds starting noticing spent casings had a u shaped dent where the bullet sits. Now, the bolt carry catches too far so you basically can’t load a magazine with out pulling on the Charging handle all the way back. See pictures. Any ideas?
I have a 11.5 inch version. Started with a pinch on the end of spent casings. Now the bolt sits to far and impossible to load a magazine with bolt open.