I was once told to start with 200" thats avg mass/beams/spread measurements on a 6x6. then start adding the length of points. For example: 1st 14" + 2nd 15" + 3rds 12" + 4th 20" + 5th 16" = 77". 77 x 2 both side are approx the same = 154. 154 + 200 = 350ish.
The tricky part is est the lengths. I've been told to use the ear as a guide. The ear is approx 10-12 inches long.
Of course I used this method and shot what I estimated to be a 340 class bull. only later to figure out that he was only 300. His mass, beams, and spread didn't come anywhere near the 200". He was unusually narrow. and I overestimated on point length.
I prefer the "no doubt" method. I've developed it.... You hunt until you find one that you have no doubt about. Shoot and leave the tape measure in the tool shed. He's a trophy, numbers don't matter.
