Re: accuracy expectation from chrome moly?
Shilens CM are not hand lapped unless you order it as such (there is an added fee, $40 I think). My load for the 6 x 45mm (6mm/.223) consisits of Win. 748, a Win. Small Rifle primer, 80g. Sierra 'Blitz' (others work well, too), in a Win. , necked-up, case. Wonder off to any other primer and groups become "patterns" (like a shotgun pattern).
"Shoots real good!": definition; it didn't blow-up in my face. Not everything can be fixed on an internet forum!