The bull at the top is 250-300 type bull. I think you need the tape to get specific.
There is a huge difference when you are using pictures to score a bull. Difference may not be the right word, how about a huge margin for error when judging off a single or even a couple of pictures.
It is possible that he has a huge body and there fore he could approach 300.
What I get a kick of is the folks on TV. They knock down a bull and then say nice 300 bull when it is clear the bull is less than 250. It makes me laugh.
I have a nice bull on the wall, most people think he is 300, but he is 297. I call him nice, because he is a nice 6 point, when I get the chance again, I'll look for something bigger.