Top one is .44Mag, bottom is .45Colt.
Sure like the looks of the brass!Deadeye, I ordered it from Brownell's. It took a couple hours to fit it to my BH but it was worth it. The BH has a totally different feel than before with the aluminum grip frame. See: http://www.brownells.com/aspx/NS/st...939&title=RUGER~ SA BRASS & STEEL GRIP FRAMES