Mine is a Bushmaster lower/FN upper built by Fulton Armory. It has a 16" Douglas bull barrel, a Jewell trigger, Harris bipod, and a Leupold 3.5-10X scope.
Off the bench (bipod up front, sandbag under the butt) using South African 55 grain fodder I got from Sportsman's Guide, it shoots about 10" groups at 100 yards.
Using my handloads (Nosler 55 grain BT, LC brass, BL(C)-2 powder, CCI BR4 primers) it consistently puts ten rounds into a group I can [i]cover[/i] with a quarter. That's 0.95" - 0.224" = 0.726" (call it 3/4 MOA). It does the same with Ultramax commercial reloads using the same bullet. It is easily the most accurate rifle I own.
That's in Tucson, about 3000', HOT, no wind (<=5mph) low humidity.
I haven't had it very long. Next I want to see what it will do at 300+ yards. We have a "prarie-dog silhouette" match every other month at my range, and the longest shots are 385 meters. I've GOT to try that!