I had an elberstock X1 that was surprisingly waterproof for the first few years of its life, even hunting and fishing on the coast. That pack had some really great things (pretty dang waterproof, quiet, gun scabbard, quiet, etc) and some crappy things (load lifters that don’t work, flexy frame, heavy, not enough adjustment for torso length, etc.)
Now for elk hunting on the coast I have a blaze range drybag I lash to my pack frame.