I recently purchased a pietta 73 from marstar. Mine is the 357 4.75 inch barrel version. I was actually surprised at how accurate mine is. Maybe I just got lucky. The grips are the checkered version. The only issue I have had is the first time I tried it I guess I didn't have the base pin seated fully so the cylinder wouldn't turn properly. If you are smarter than me you won't have this problem. I have found the best way to hold any sa is with the little finger underneath the grip. I have no information on the chapparal but I probably would buy another Pietta or two, especially if they offered them in 44 special.