>I've got an old Army "mountain" ruck you can borrow if you want. I have no idea what the volume is. It's an external frame pack, made to carry a LOT of weight (ammo is pretty heavy!). And I do mean old, I used it back in the 80s.
Doug, my friend, you have a LOT of neat stuff. I have one of these, as well, made of leather and weighing in at half a ton or so. I wouldn't part with it for the world. It reminds me of what it was like to carry 65 pounds, complete with leather rucksack (when they were called rucksacks!!) and a two-burner white-gas stove. What were we thinking?
P.S. Such equipment reminds me of my solid advice, despite the opinions to the contary: Get the gol-danged weight down to 35# or less. In the end, you'll enjoy the hike better. It's worth the extra expense to have one of those "peak experiences" instead of thinking about how heavy your pack is as you walk for 10 hours with that "monkey" on your back. A pack designed for 40 pounds still feels better at 35, IMO. But that's just my back, I could be wrong.
P.P.S. to Doug: Got the Gatewood Cape and set it up in the backyard. Geesh, the thing is tiny and hard to get to set up with a taut pitch. (I like the weight, though.) Any suggestions?