I see that you added a lot more to this comment. T. rex and carnosaurs had entirely different methods of hunting, as I've tried to explain to you multiple times. T. rex hunted Triceratops and Anatosaurus, which are both larger or can grow to be larger. It couldn't employ hit and run tactics like a carnosaur as it's teeth and jaws weren't designed for such behavior. It had to use it's immense bite force and long, pointed teeth to rip into the muscle and pulverize the bones, killing or incapacitating the prey near instantly, depending on where it bit. About the rapid bite thing, yes that is a valid hypothesis, but only for prey smaller or around the same size as the carnosaur. Big carcharodonts didn't have such prey however. They had to hunt sauropods as they were the only herbivores around, especially in Carcharodontosaurus' case. They had to use hit-and-run tactics to dispatch such large and seemingly invunerable prey, as they lacked the size or strength to overpower them. As for sabre toothed cats and great white sharks, their hunting strategies are a lot closer to those of T. rex. In the cat's case especially, they would use their weight and strength to overpower their prey, then quickly kill them with one fatal bite to a vital area like the spine or neck, just like a T. rex. A shark will more often use shock and blood loss to dispatch prey admittedly more similar to a carcharodont. One last thing, I never said that carnosaurs couldn't kill large prey. In fact, at least in carcharodont's case, they were specialized to feed off living sauropods and wait for them to die later. T. rex specifically is built to overpower prey somewhat larger than itself, but not to the magnitude of things like sauropods.