Yeah the P3, which i have never handled, do seem like a power gun, but then again the Maverick and other FX rifles no slouch either.
My maverick that was originally 600 mm, well on power wheel 7 and the 90 bar, it shot 13.43 gr MRD pellets at 570 FPS, granted like lasers but i did not get a FAC rifle to have a glorified blowpipe, but the problem was, i could of course get speeds up, but then the only working ammo in it was the beast pellets.
And that remained so ( dident shoot slugs back then ) until i got a new 700 mm barrel, it with some tuning of course i can get to shoot just about anything fairly well.
Okay the heavy liner i also got, well i can still not get it to shoot heavier slugs like 16 and 20 gr well, but like the regular barrel ( 700 mm ) it shoot 13 gr Zan slugs very nice, though i do often have to chase a changing POI around with clicks on the scope.
I have big hopes for the epic airguns two, that is for a new slug rifle.