Rob
Before I did anything I would shoot it at 100 yards, and If groups were good enough to hunt with I would then shoot it at 200 yards.
With my 9,3x74R almost everything shoots close enough to the sights to hunt with at 50 yards. At 100 yards is where I seperate the good loads/groups from the bad. The loads that shot good at 100 also shot good at 200.

Also you might shoot it at twenty yards. You may find that your rifle is not "crossing" rather that it has not het "crossed". It could be that your left/right bbls will come together and then seperate as the range increases, which is why I recommend you shoot at the longer distances.
Let us know how she shoots at 100 and 200 yards.