I think bullet construction, weight,
type, etc plays a big part here? A 20 gr hp/sp with a tougher construction is gonna act differently than a 17 grain plastic tip. A friend got one when they came out, and started using it on PA groundhogs. Groundhogs can be tough to DRT if ur not using enough destructive energy in the body. Ive shot them w 30-06 deer loads, and they ran 30 yds to their holes w a big hole in them. Ive shot them w a 125/130 Speer hp in the same gun, and turned them into a bloody rug not needing much fleshing to tan. What my bud found was the 20s penetrated much better, due to probable tougher construction, and probable slower speeds w that construction. And they killed better on body shots. IIRC they were less accurate for him too than the 17's. Expansion is prob less at longer distances id guess, like a lot bullets where the speed drops?