You sure have come a long ways with your skills since then.It seemed like a good idea at the time....
I have to think his “box” has a hole in it!“Whoever did that is an out of the box thinker for sure.”
He was trying to flute it, like the chamber.I once purchased an HK91 from a gentleman that had a strip of dull black tape tuning g along rhe top of the receiver. He said that he put it there to cut diwn on the “shine” that reflected there. I did not pull it off until I got home, and I then saw that he had attempted to drill and tap three different sets of scope mount holes (6 holes total), but all of them were slightly off center. When I removed the bolt carrier I saw that he had left it in the weapon when drilled and tapped the holes! Needless to say, the bolt carrier had six off center holes drilled into it as well.