I have had 3 different 9.3x74R doubles, and all shot well with 63grs AR2209 and 286gr SP Norma projectile or 270gr Speer. I'm hoping my current one will shoot the 286 RNSP Woodleigh as I bought 500 of them. Provided the rifle was regulated for the heavier projectile and not 230 gr lighter ones then you should not have too much trouble with it.
Good Luck
LesLeeSpeed