i have a er shaw barrel on a 110 i have chambered in 257 roberts. they actually had one in stock that some one didn't want the suited my needs. its a 24" standard contour with a 1:10 twist rate plain blue. they are a real nice barrel, chambers are great the finish closely matches the receiver. free floating on a wooden stock with some action work it shoots sub moa at a 100 yds. ill post pics the next time i go to the range.