I've only seen 2 sows that exceeded 6'. Even the ancient ones. my brother shot one that by all indication was deaf and blind, nothing left for teeth 5'4" if I remember right. I think a 6' boar is generally not fully mature. It seems to me at about 6.5' they start widening out showing more gut, hindquarters rounding, legs looking stumpy. A 7'+ bear is where trophy status seems to be universal. The folks I've hunted with in BC, like to shoot 6' plus. Last spring they had mostly return clients, and for the first time they tagged out 50 bear, all beat 6' 2 beat 7'. in a couple of decades of 40-50 bears a year, 1 21" skull is all they've taken. their bear density is high, 6-8 bears a day just driving clear cuts is usual. They have a huge area, with even more primitive area behind theirs to funnel kick outs into any space they make vacant. Berries everywhere, forest roads with a lot of clover, (seems like the roads are hydraseeded when loggers quit using them) and some salmon if they can stay ahead of the grizzlies. We don't get big skulls here P&Y is 18" a taxidermist claimed to have processed more than 10,000 skulls with only one exceeding 21". Older guys tell me the dump bears were bit bigger in the old days. The single 21" I kow of came from a bait on the back of someones property. That site was used for many years, and likely that bear was fed for a decade before being shot. My 7'3 bear went 19 11/16, and mid nineteen seems to be where we stop here. I'll drag out the B&C book if I get time and see what all time looks like here.