I've shot a lot of critters with the untipped TSX. I've recovered a lot of them from my .338-06, as they always stick right under the hide on the offside. Every one of them performed exactly as advertised. Same with the 30-06, I recovered several of those. All mushrooms with about 95% weight retention. I haven't recovered many from my .243, but the few I have also mushroomed well.
With the .243 I've killed elk at 250, mule deer up to 350, and antelope at about 425. Flawless performance on all. Sorry you guys haven't had good luck with them.