My hunting partner shot a bull near our property a few years ago that had a carcass weight of 610 lbs delivered to the butcher. Wish I would have seen that one in person so I would have a comparison with the bull from a couple weeks ago. Partner figured this one was very similar, so my estimate of 1000 lb live may actually be conservative.
610 x 100/55 = 1,109 lbs estimated live wt.
Whatever, we probably won't get one bigger any time soon.