Of those 60-plus bulls, only 20 will be alive by age 6, and probably fewer than 10 by the critical age of 9, DeBerti said. "People don't realize, but to get to that trophy size, for an elk, that doesn't happen until they are at least 6 1/2, 7 1/2 years old. If you look at the ones that make Boone and Crockett, most of those animals are 9 1/2," DeBerti said. "It takes some age to get them to that point. "The ratio (of bulls to cows) has to be high to keep a lot of older, big-racked bulls out there."