Originally Posted by
Unknown Cyclist
Not sure what you mean by weird nipple holes, it looks like part of the edge of the hole is missing ?
If the nipple hole isn't round it's pretty much all over. JB weld or epoxy isn't going to fix it because that's a stress riser. It's like ripping a piece of cloth - once it starts, it tears very easily.
You can fix it right once and be done with it or you can fool around with it. If you decide to fool around with it you'll almost surely be replacing that rim sometime in the future.