Yesterday I was shooting an off-the-shelf metal handgun spinner with my Polish Tokarev pistol and milsurp ammo. The range was about 5 yards and about 50 rounds into it, I got lit up with fragments. I'm glad I didn't put my eye protection to the test! One in each shin, one smacked me in the forehead pretty good, and I have a chunk buried in the triceps muscle on my left arm. The doctor said they're leaving that one in, that they'd do more damage than it's worth to go after it and that "it'll probably work it's way out some day"... Maybe 5 yards it too close for spinners with ANY bullets, or maybe the fast .30 caliber FMJ's are especially bad for that.
BE CAREFUL AND ALWAYS WEAR YOUR EYE PROTECTION!
BE CAREFUL AND ALWAYS WEAR YOUR EYE PROTECTION!