I have heavy AR 10s so I decided to build a light weight one, but accurate if possible, in 308. This one is 6 lbs 3 oz no scope. And it does not have a pencil barrel but a heavier profile fluted 16" barrel, to keep rds on target. Carbon fiber hand guard, 1 oz titanium brake, Roam magnesium upper, titanium bolt carrier. To finish it off with a Leupold Mark 4 M3 3-10X mil dot with appropriate 30-06 180 gr elevation turrent to match trajectory and Warne 20 moa ultra light mount, for 1200 plus yds. Total weight, ready to hunt 7 and three quarters lbs. A delight to carry, feels like an AR 15. Already have some good high velocity loads, in the .5 to 1 moa 5 shot group range...will be testing other bullets, like the 169, & 177 SMK, & 168 gr eldm. The 168 gr Berger 2687 ave 11.4 S/D is very accurate shooting 5 shots half moa, the 150 gold dot 2813 ave 9.4 S/D 1 moa, as well as the 208 Eldm averaging 2442 fps 13.3 S/D fast for a 16" barrel 308. Got some fast velocities with 155 gr to 2900 fps ave but the accuracy was not there..lower or change powder for the 155 grainers, and recheck. Just another project to play with...