The Thor is a sabotless solid copper Barnes type bullet that is one tough cookie. With the deformation you have, it must have encountered a pretty good bone and still did its job. If you can handle the recoil of that load, power to you, but probably doesn't have to be pushed that fast. If accurate, anything around 100 gr of powder should be more than adequate.
If Thors were easier to obtain and use, and not as expensive, I might use them more often. And due to only one supplier, you have to have bought all you need early because he can run out closer to hunting season.
All in all, you probably can't find a better bullet for big game if they fly well out of your gun. But due to cost and convenience, and a good track record for us for elk, I have used the FPB
venor, ergo sum (I hunt, therefore I am)