Can't decide on either buying a GAP-10 or have GAP rebarrel my LR-308. I intended on re-barreling my LR308 to shave some weight off so I sold the barrel assembly and now left with a rifle without a barrel. Should I sell the rest of the parts and get a GAP 10 or should I just re-barrel the upper? So many choices! I'm stuck! need advice! Will a complete GAP-10 be any more accurate or lighter? or will I yield the same results by rebarrel? Main purpose will be target shooting inside 800yds and possibly hunting. I was planning on a 18" fluted barrel, is 16" sufficient? Any disadvantages wanting a .750 dia vs .875?