I'd say 45 lbs is about the best you can do for an October hunt with a good chance of snow, including gun, bullets, rangefinder, binocs, spotting scope, and 2 liters of water. That is what my pack weighs right now and I want to toss something out, just not sure what I can afford to ditch. I'd like to toss out the gun, but I guess it wouldn't really be a hunt without that! I left out my video camera and camera, and will just carry my phone (8 MP camera with good video) with an extra battery. I use lithium AA batteries for headlamp and gps as they save some weight and last much longer. You could save a few lbs on upgrading gear, but would those 2-3 lbs be worth the $500 or more in money?