I was out shooting with friends and brought along some out of date pannels to use as target practice. we shot the normal bullits from a pistol, even these well used pannels stopped 9mm, 357, 44, 45, and 45 colt. even a 250 grain 45 colt shot from a carbine. it stopped them all. then we shot it with a 17HMR from a single six.
the entry is the pinhole at the point of the blade.
this is the exit hole aprox 22 caliber. I was very suprised that it went through! I thought it would break up and be caught.
we also shot a few rifle rounds at them and most blew right through. just a cool bit of trivia. DR