Pete, I wouldn't call it extreme in the least. In actuality, I would call it mildly weak. Bone density is quite a bit tougher than the thin plywood Ron has been using in his tests and that old commercial carpet he is using is probably a little weaker than hide and fur on a WINTER deer (fat stored and winter fur growth being near triple the summer fur) so I would call his tests quite a bit more accurate than just a piece of leather in front of ballistics gel. Granted I'm not a huge supporter of these water jug tests but the way Ron has been doing them is quite a bit more accurate than just the mere ballistics gel that most testers use. The ballistics gel test gives a good visual of the probable wound track and temporary, as well as permanent, wound cavity. But real live simulation of how the bullet would act on a game animal it is far from accurate.