Switchbackkd, Just got back from using the sky7400 pack to haul all my gear into a camp and then as a day pack for a 5 day hunt. Basically modified a couple minor things and had some thoughts about the sling to attached the rifle to your pack but all in all very happy. Also I am a pretty big guy and had some fit concerns and ended up talking to Kurt the owner of Stone glacier a couple times and can tell you the support is top notch. I am no backpacking expert by any means but would be more then happy to discuss with you if you want.