tex270,
I hunted with my buddy, his dad, and his uncle last year. They had three of the twelve rifle tags for the unit. All of them took 300 class bulls. I think that they could have gotten bigger, but it was hard to keep them from shooting raghorns. I saw two of the other bulls that came off, one was 300 class and the other was purported to be 340, although I would guess it was more like 330. Throughout the fall I spent quite a bit of time hunting this unit, big bull, spike, and late season cow. I ran onto two different bulls later in the year that I would judge around 350 class. I have heard tell of 370 class bulls on the unit, but I feel that they are not the norm.
I would be glad to help with whatever questions you might have. Just let me know. You will have a good hunt.