This is highly interesting. I have done extensive testing of the .44 300gr XTP in wet paper with many different powders and velocities, and from many distances. No sign of disintegration whatsoever.

Wet paper is not real animals though, especially not bone, but all the animals I've taken with the bullet has been 1 shot, full penetration kills. Mostly deer, to be sure, but also a 200lbs four-horn ram from about 70 yards. It didn't react that much to the shot, but slowly walked away about 50 yards and piled up undramatically. A double lung shot, substantial exit wound. But no major bone involved, a lot of wool though.

So given my own experiences, I have full confidence in the 300gr XTP for animals at least up to red stag. Then again, reading this report on performance makes one doubt a little.

And oh, Whitworth, the only animal I have had to fire more than one shot at was a pig on which I used heavy hardcast .44 310gr flatpoints...;-)