Tim in Wa.
WKR
Unless you're going to be blasting rounds in camp, 20 cartridges should be more than plenty. I only bow hunt and I take 8 broadhead arrows for a 2 week hunt. I'd have no problem going in with 10 cartridges personally. Limit yourself to 100% sure shots and make it count.
I made myself a 6'x8' tarp from silnylon and it's sufficient for laying out moose quarters which is really the only use I have for it when butchering. It folds very small and is lightweight; makes a good emergency cover for gear or whatever.
Thing I can't live without in the backcountry: Pocketknife. I'm serious...you'll always find a Case 2-blade folder in my pocket. 2-1/2" main blade and I use it for everything, every day.
Another item seldom mentioned is a sitting pad. I take a Therm-A-Rest Z-Seat as it weighs maybe 2 oz and folds nicely. Keeps my butt dry when sitting and glassing, while protecting my pants from damage by rocks, etc.
Pillow: Say what you want, but I'm not going anywhere for 2 weeks without a real pillow. I've done the make-do thing (stuff sack with clothing) and...uh-uh....not anymore. My head deserves 8 hours of comfort every night. I like the Therm-A-Rest Compressible Pillow in a large size.
2 oz bottle of Dr Bronner Peppermint Castille Soap. Works on everything you've got.
1 oz bottle of 100% DEET....just in case.
1 oz of your favorite steak rub in a plastic baggie.
Black Rock Gear down beanie. Weighs about 2 oz or less and is superbly warm.
Cutco #5718 Drop Point with Double-D edge. Best moose butchering blade I've ever used or seen used. You can't imagine how much effort an extremely sharp serrated edge saves you on a moose-sized job.
Where did you find a cutco with the plastic sheath? All I see is leather on their website