ORIGINAL: ijimmy
I would imagine this comes from experience. They may have noticed a trend in unrecovered animals and found that bears shot with a 100g head we recovered less of the time then those shot with a 125g head.
What
That just doesn't make sense , if they are the same cutting diameter .
I didn't say it was logical but I'm trying to make sence of why this rule would be. I agree with good shot placement the size of the head will matter little on bear. The outfitter may find that a lot of hunters have less then perfect shot placement and the 125g heads (along with a heavier arrow) will get you a little extra penetration. Reguardless of why he has the rule it's in place and you can adjust accordingly or hunt elsewhere.
For those who've make remarks to the effect it's because he's from Canada, you're probably right. My guess is the outfitter has imigrated there from somewhere in the U.S. (There are idots all over this world)