Most powerful .177 PCP out there ? Pile Drivers ?

my rapid air weapons .177 is getting 21 foot pounds with jsb best 16 grain.
I'm getting 19ish fp with hnftt 8.6

​accuracy wise I have no problem takeing rabbits and doing head shots at 125 yards.
​ive done testing out to 125 and its easy to head shoot rabbits to 125.
​every single shot would hit the rabbit in the head.


so how far do you want to hunt with yr 177 and pile drivers and what do you want to hunt?