yes more powerful round its a hyper velocity
most of the cheap stuff is high velocity

For powerful 22 rounds (velocity out of a rifle) Thats most of the hyper velocity rounds.

CCI Velocitor 40gr hp 1435fps
CCI Stinger 32gr hp 1640fps
Aquila Super-maximum 30gr hp 1750fps
Super-maximum 30gr solid 1750fps
Interceptor 40gr 1470fps
Win Supreme Xpediter 32gr 1640fps
hyper speed 40gr hp 1435fps
Rem Yellow jacket 33gr TC hp 1500fps
Rem Viper solid 36gr TC 1410fps

22's are very deadly becuase they bounce around alot after hitting the body, but they are not take down power for self defence.