I’ve Never hunted Montana but I will say as an Idahoan that has had “mandatory “ harvest reporting most of my life, people lie on all sides of the equation on harvest reporting. I’ve had people tell me they report unsuccessful when they were successful, say they killed something small when it was actually big, miscount points, say they hunted more days than they really did, etc. Unless the animals are physically handled by the person making the report I would guess any harvest data from anywhere is suspect