NO!
Every year I hear guys talking about seeing a 350" bull in the toutle or margaret. But haven't seen any to the tape to hit that mark. Until you watch a bull, guess his score, shoot him or watch him shot and then put a tape to it, your pretty much full of *censored* as far as field judging/scoring on the hoof a bull. A 300" bull looks real big on the hoof, and 330" looks huge. I've been in on kills of some real nice bulls and killed a handfull myself and I still over judge by 10-15".