Looking at the ammo and the target, 3 fragments of about 40 grains each that are quite large? Looks like there would be considerable 'flutter' of the projectiles. Being that large and oddly shaped, you see the keyhole patterning on the target. They would likely NOT penetrate worth a darn. Sure, they would hurt a lot, but I bet they don't get more than 3 or 4" of penetration, certainly nothing approaching FBI standards.
Semi-lethal? What?