You're entitled to do it whichever way you prefer, but having different zeros for different applications makes no sense to me, unless I'm dealing with rimfire.
You're right, this is long range hunting. It's more important to me to hit an animal where I want to, than a target at a tactical match. As such, I want every bit of precision and accuracy afforded me by the equipment I'm using. To admit that its appropriate for a tactical match where utmost precision and accuracy is warranted, but somehow not appropriate for hunting is... well I don't know what it is. There's a word for it I'm sure.
Mentally, the aspect of holding "under" for closer shots introduces a variable that otherwise wouldn't have to be there. With my 338LM, I would have to hold under nearly a full mil at 100yds if I set a 300yd zero. That isn't a small amount. While that is only 3.5" and in theory will not matter at 100yds, it is not something I'm willing to accept as "good enough." Anyhow, I'm sure you've heard both sides of the argument and are intelligent enough to do it whichever way you see fit. I'm just expounding on what I see to be flawed logic. If you agree its more precise and will work better for a precision rifle match... why is it not adequate for long range hunting? After all, inside of 400yds doesn't really meet the definition of long range hunting does it?