I had heard of Dead Shot barrels, but can't offer any info on them. I've dreamed of an 18 or 20 inch barrel since getting my Scar a couple years ago. I'm hoping, but think it will never happen, for a medium profiled chrome lined barrel, WITHOUT it being match grade. I prefer a regular type chamber for reliability reasons. I prefer a tolerances a little on the looser side. A two or three inch MOA rifle is good enough for what I want to do with my rifle. I looked at the Shilen barrels by HDD, but if I recall, they are not chrome lined. Reviews are a bit hard to come by. I'm in the minority on this, as most ppl want match grade everything. I personally shy away from match grade anything really.