I have killed multiple deer with 245 hp, 260gr and 270 platinum powerbelts always using between 100 and 110 by volume of triple 7. every deer dropped quickly. usually the bullet would either pass thru or lodge on the opposite side of the hide. on the 245 i would end up with about 150-175gr left in a nice mushroom. the 270 platinums held together pretty nice.I never saw the terrible failures that others had although some may say the weight loss was extreme.