I will be hunting elk in New Mexico Unit 2, I expect to hike a bunch, I will be using an MOA Evolution with a Nightforce NXS 3-15 scope. I'm looking for a relatively light pack that will hold the rifle, a hydration bladder, jacket, rain gear and that's it. I will be hunting all day and any help or suggestions would be greatly appreciated. I've looked at the Eberlestock packs and they look great but they seem to be on the heavy side. Thanks.