Got a "new to me" barrel from a member yesterday and set it up. 24" Fluted 223 Savage barrel. Started out with two kinds of factory ammunition. American Eagle 50gr Tipped and Australian Outback 69gr Sierra. Ended up with a pretty good group. Three shots of Eagle and four shots of Outback. Also shot a 3 round bughole with 68gr Hornady and 8208 XBR. Nice when it all works out huh?