I don't know anything about the previous homes of this shuttle, but it seems like someone at some time used it in a studio with a concrete floor. The steel tip had been beaten pretty flat.
Ordinarily, this wouldn't cause so much of a problem, but there is a combination of factors making for a narrow shed. I've got slack tension, fat threads, and a 6-dent reed with 3-4 threads per dent. The narrow shed means that I'm depending on the sharp and smooth tip of the shuttle to bring the weft thread where it belongs.
Instead, the flattened tip was catching on weft threads pretty regularly. I would know that it happened when there was a thread snap! and the shuttle hit the floor.
Then I'd take a couple of minutes to fix the broken warp thread, replace the shuttle on the track and get going again.
The solution was pretty bold: carefully clamp the shuttle in a vise, file the steel tip to sharpen it and get rid of the flat spot, then use sandpaper and steel wool to get it "glassy smooth" again.
It worked! I had to do this treatment to both ends of the shuttle, but it hasn't snapped a thread since I did it. I'm finally able to weave at a decent speed.