Pet Accuracy and Ranged Accuracy (ditto Attack) seem to be handled as the same single variable in item stats. SE could probably just not publish the Ranged parts, but I guess they don't feel like it.
SE should really try and find a way to make Bst racc applicable. Like, maybe a chigoe pet that stacks to 99. Rather than make the chigoe fight at us, we just pelt them at the mobs really hard.