I have a tubular steel receiver with a couple of holes in it where a 3/8" pin passes through. This hole was drilled (not by me) slightly out of alignment such that the pin crosses through at a slight angle.
I can't weld, and I don't want to buy a welder. But it occurred to me that I could relieve one side of the holes with a Dremel, testing and fitting carefully until it lines up.
This would leave the holes elongated. If I had a proper solid steel rod to fit inside the tube to use as an anvil, could I then simply peen around the opposite edge of the holes to get them to tighten back up again so the holes are not elongated?
If the peening is viable, what's the best type of punch to use? Sharp, or more rounded at the tip?
Or perhaps another question would be, how would you go about this repair? The tube is a serialed receiver so I am trying to avoid the red tape and expense of going through an FFL to ship it to the manufacturer.