Years ago I had a .45 ACP 230 FMJ bounce off my wrist. It came back at me after bouncing off a piece of ballistic plate glass that was probably almost 2 inches thick.
I was shooting and I felt something like a bee sting on my left hand/wrist. I kept shooting but then the pain increased slightly. I stopped after emptying the mag to see what it was... I pulled up the sleeve on my jacket and I saw a nice circular bruise right near my wrist, and a little blood. I moved my sleeve a bit and the slug fell out onto the ground!!! I picked it up, it was almost completely flat!
I wish I had kept the slug, but for some reason I left it at the range or couldn't find it when I went to leave.
The area where it hit was "stingy" for awhile but it wasn't enough to make me stop my range session. I cleaned up the wound when I got home and that was that.
FWIW the .45 ACP round only left a small pockmark on the front of this glass block. .40 S+W JHPs that I had actually expanded and buried themselves in the first layer. I fired .45 ACP JHPs at the block too, but they did the same thing that ball ammo did.
I had another block which I obliterated with numerous rifles.... they all went right through, although the .308 Win shots actually blew the block apart into chunks. The block was no match for anything resembling a
decently powered rifle bullet.
Needless to say though I won't be shooting at that stuff without taking more precautions, and likely not at that distance anyways.
I should take a pic of the one block I have that is still intact and post it here. It has a few handgun hits in it, and a few rifle holes drilled through it by .730 waters, .35 remington, and a couple 7.62 x 39s. I keep the block around as a visual demonstration of the power difference between the cartridges/platforms.
-Mike