..."The current 31 gr SS-190 FMJ bullet has nearly adequate penetration, but the wound resulting from this projectile has a relatively small permanent crush cavity, as well as an insignificant temporary stretch cavity. Although the 5.7 x 28 mm penetrates soft body armor, wounding potential is at best like a .22 LR or .22 Magnum. Even 9mm NATO FMJ makes a larger wound--and we are all aware of the awe inspiring incapacitation potential of M882 ball from the M9......
Don't own one, so I have no dog in the hunt. I can certainly see why it's not useful for our guys in uniform, when they can choose between M4 in .223 or 6.8 SPC.
But I'm reading notes about FMJ bullets in the 5.7, and there will obviously be a huge difference in wounds between expanding and non-expanding bullets. Seems like LEO's and the rest of us can use expanding bullets, and I would think a perp would indeed notice when hit by a varmint bullet at 2300 fps.
I knew a guy 30 years ago who hunted fur avidly in the Texas panhandle. He had a .17 Remington, but quickly sold it after he had to shoot a bobcat 4 times, longest shot 100 yards. Small non-expanding bullets are not particularly effective, even at ~3800 fps
I guess I'll edit to add that the PS90 is certainly an ingenious design, the way it feeds out of a 50 rd magazine; and I can appreciate that as a collector and engineer. The PS90 rifle is too spendy to buy for grins, but I have thought about a AR57 upper for my Armalite. In the end, though, the house long gun is a 9mm carbine, with laser sight. It's loaded with +P JHP's and it should work fine
