I have used a Savage 99 in .22Hi-Power and a BRNO combo 22HP over 12g using 4x tasco, I have shot pigs with this calibre and using mostly Norma 5.6x52R it drops them pretty good and compared to a similar calibre 223Rem in a CZ I would say the 22HP is better (70g versus 55g) and as for a 225Win in a 70g it would be not much differece you could not tell any difference between them. The 225 is semi rimmed and headspaces on the shoulder also the 225 was designed to approach .220Swift velocities of 4000fps with 45g or 50g bullets ,the 22HP was designed for a 70g load and head spaces on the rim and is a "classic" calibre . I would go with the 22HP as Norma,RWS,Sellier & Bellot make ammo and Hornady make projectiles as for 225 I do not think anyone makes ammo and is a reloading only calibre

308