Maximum average pressure
22hornet 3000bar
22 savage high power 3300bar
25-35 win 3050bar
and
location of the pressure take
22hornet 17,5mm
22savage hp 25mm
25-35win 25mm
those rook rifles are desingned to use quite mild cartridges (I think) like 300/295 1200bar / 17,5mm
so i think that 25-20win and cartridges like that would be nice for your rifle.