"RC" stands for Range Certified, and attests to the fact that each of these rifles was fired at an indoor 100-yard range and produced sub-MoA groups with Weatherby ammo. You get the actual target, signed by Ed Weatherby. The rifle comes in .30/378, which is something of a revelation to shoot, because its bullets don't seem to drop. The stainless barrel is 26 inches, with a muzzle brake, which you need, and is deeply fluted to save significant weight and promote cooling, which is nice when you're burning as much powder as this round does. A great many factory barrels are fluted for cosmetic reasons, but this one is the real thing.