I am having Melvin Forbes with NULA re-build a 284 Winchester for me in a model 20 based on one of his older ULA's. Obviously the goal is an ultra light mountain rifle. My question is should I go for the 22" or 24" barrel. I plan on using it for high elevation hunts in the lower 48 with a 140 grain accubond bullet traveling around 3,000 ft per second with a 3" coal. Longest shots will probably be 500 yards once I get enough time behind the trigger. Second question - scope choice. I am thinking about a leupold VX3 in a 3.5x10x40 with CDS obviously trying to squeeze as much out of the scope without compromising on weight, but I keep going back to a 2.5x8x36 to save a few ounces. Melvin recommended not to use a euro brand due to zeroing issues in the past. Total weight with scope is 5 3/4 to 6 lbs. Your input is appreciated.