Hardest non-heavyweight puncher of all-time?

[sentax]

Who was the hardest hitter who never fought at heavyweight?

[_Rexy_]

Does Bob Foster count? He fought for the HW title a few times, but I’m pretty sure he was always a LHW when he did it.

(Back then LHW champ vs HW champ was pretty common)

[Johnnyrider]

Julian jackson

[Quaccey]

Thomas Hearns

[The Old LefHook]

Art Hafey definitely comes to mind.

[Lomadeaux]

Ray Robinson pound for pound

[TonyGe]

Julian Jackson was a devastating puncher. A true one lunch knockout artist.

[SheenLantern]

Maybe Kovalev?

[PRINCEKOOL]

It is probably Thomas 'The Hitman' Hearn's. Even when he moved up in weight, his power carried through which is unusual.

[Sugar Adam Ali]

Hearns
Bob foster
Manny
Julian Jackson