I picked up a pair of Targhees in 15 and wore them out on the trail a fair bit. Didn’t have a lot of chance to test their waterproofness.

They blew out on the AT summer-before-last and I sent them the picture. They sent me a coupon for replacement Targhee IIs and I’ve been really happy with them. Yesterday morning I wore them shooting and there was heavy dew and one leaked a fair bit.

Mind you these are 2 years old so they’ve got a fair number of miles on them. They’re extremely comfortable on the trail tho I don’t carry near the weights you’re talking about. They’re a great mid-point between full leather hikers and trail runners IMHO.

I’ll get another pair when these go but that won’t likely be for quite a while. These’ll be going to South Dakota’s Black Hills with me in November where I may get close to your load qualification when I have a buck in my pack 🙏🏼!

Enjoy your hunting!