Re: H4831 / H4831SC?
I don't see any difference when shooting either in my gun, sc or 31. I'd say the main thing I don't like on the 31 is that the extrusions weight around .0028 grams each and weighin in close is tough with that. The SC's are about .0020g each and that's nicer to work with.
If you have something that you disassemble and reassemble enough times, sooner or later, you'll have two!