If/when they do that every time, they'll be onto something great. As someone else said, there's no bullet quite as 'sexy' as one of these when they end up like that. 'Course, it also helps when the recovery of the pretty bullet matches the quick and easy recovery of the critter involved.
I've only shot 5 critters with the Barnes .30 cal 168 TTSX. I used them in South Africa last July and were shot from my .300 Weatherby. We only recovered 2 bullets. One looked exactly like the one AB posted, the other was the same without one petal. Easy recovery of all critters.
Previously I had shot 4 North American critters with the 168 TSX and all bullets were complete pass throughs, including a broadside, behind the shoulder shot on a 5x5 bull elk that also had a blood spatter on the snow like AB described.
I also used 300 gr TSX bullets on one African hunt and 270 gr TSX bullets on another, these were shot from my .375 RUM. I shot 6 animals with the 300 gr TSX bullets and recovered one from a Buffalo, and 13 animals with the 270 gr TSX bullets, and only recovered two. The only animal that we had to track was a Bontebok that I hit too far back. The recovered .375 cal TSX bullets were identical to the .30 cal TTSX bullets that that I recovered last July: