here is a bad pick (need to get computer fixed to down load camera pics) of my 223 on a rommy trunion with a bulgy bolt, 26" bull barrel floated, modifed saiga fore grip not touching the barrel. very custom RSB with hand made milled steel weaver rails. g2 trigger converted to adjustable with a screw added aprox 2lb pull no creep. 36x scope ,versipod, advanced technoligies stock, bulgy 10 round composite mag. it is not SA in this pick (no gas block) customised AMD65 gas tube bolted to the RSB. .t weighs 18 pounds. it has done .5 100 yard groups and killed prarie dogs at 400 yards. I have shot around 800 rounds through it. it will get a Gas block and be SA soon I have also added a adjustable cheak rest and a adjustable rod that comes out of the stock that supports the rear of the gun to adjust elivation when shooting of the bench or ground.
I am working on a 17-223 very simular to it now as well as a 6.8 SPC and a 22 PPC. I will try to get more pics of the build in the future,