They are gimmicky. Don't fall for that stuff. Just like extreme shock ammo. Pick up some federal or Speer HP ammo by 25-50rnd boxes. Let me know if you have any problems. My guess will be NO.
Also, don't go for those frangible kind. Testing shows they do not penetrate enough to reach vital organs, especially if you have to shoot through thick clothing or barriers.
"A 9mm is a .45 set on stun, and real men do not believe in stun."
HK USP Tactical .45 w/UTL w/SWR HEMS 2 Suppressor
HK USP Compact .45 SS
HK P2000sk 9mm
HK P7 PSP 9mm