I had an Eberlestock X1 and it worked fine for a day pack but was a little short on volume for me, maybe the X1A3 Euro with its extra capacity would be ok. I have an X2 now and can strap a rifle to it easily if needed plus it has a little extra volume and is better for strapping game quarters too. Another thing is I like muzzle up carry. I sometimes hunt in steep country and don't like the muzzle down carry as it is below the pack that can get caught on things and throw your balance off.
