Ok, added SCR's for the rifles listed so far......


Can someone check my figures? I'm getting confused! (Have made a spread sheet up so its all automated....)

Looking at the SCR for say the early 77 and the 80, the 80 should shoot nicer than the 77 Or at least it's closer to the preferred 300:1-500:1

I'm guessing Piston weight must be playing a major factor here!