Rumble Johnson hardest puncher in mma history

[BKM-]

Rutten's not a good shout at all, he was reduced to palm slaps for most of his career due to pancrase rules.

[juggernaut666]

Shane Carwin /Fedor Emelienenko/ Cain Velaqueus/ JDS / Overeem all hit harder

I would imagine one could make a top 10 list from Tank Abbott to Roy Nelson who hit harder than Rumble.

[Fury4daWIN]

Melvin Manhoef had insane explosiveness.

[kaps]

Melvin Manhoef had insane explosiveness.

Manhoef for sure...

[kaps]

Hendricks had good power until USADA....

[krazyn8tive]

Hendricks had good power until USADA....

Lmao good point. Rumble has great punching power. He doesn't even have to wind up for a shot to really hurt someone. That's a sign of being very heavy handed.