Thanks Ben, that's about what I recall for my set, 20-21 oz. Fortunately when I last used my Ursack legally out of Mammoth, the Backcountry Ranger had no ideer how it was to be deployed. I gave her my email addy but never heard from her as I only had my sack tied to a tree and she thought it had to be tied in a tree like a bear hang. She was working with a small crew, redoing fire pits, making the Ranger fire pit, using three rocks, I thought they were neat and would cut back on large campfires.
Matt, I took my Bearicade when I visited the Winds two summers back, gotta go back. Your pic is some of what I saw too. I brought my canister because of ole man grizz.