Looking to get a barrel that will give me .5 moa or atleast sub moa. Don't want to pay more then $600 out the door. been looking at a Lilia drop in but the only thing is I need a step in the barrel for a ops inc collar. Will lilja contour the step if I give them dimension? Also looking at a bartlein barrel but where would I go to get it chambered and contoured for a lr-308 upper. I know Lilja sells their drop in barrel on their site but where do I find a bartlein barrel? Of the two what's the best choice and what will preform better using handloads.