Well, I took my M1A out for some weekday trigger time. I decided to do a little ammo test and compare Portugese, Spanish Santa Barbara, and plain old Winchester .308.
Unfortunately, when I came home and cleaned the rifle, I noticed what looks like some damage. Just left of the circle at the end of the oprod slide you can see there's a small nick in the reciever. I realize the pic sucks, but you can still see what I'm referring to. Its only a shallow dip, but I'd like to keep it from getting worse.
I'm wondering if maybe some of the ammo I shot was a little too hot that it sent the oprod a little further back than it should have went? I don't know if that's even possible, but I'm at a loss as it to where the damage came from. Any thoughts?