I have a Liberty (1976) #1A in 7x57 (no, it's not for sale ) and the rifling in the barrel is very well formed, but rough as hell. It was obviously not lapped before rifling. It still shoots well, under 1½", but I should really fire lap it, to smooth it up.
I will say, I have never seen a #1A or #1V that I would call inaccurate, though some were better than others.
GRRRR - I meant to say, never seen a 1B or 1V that I'd call inaccurate. Can we no longer edit posts?
) and the rifling in the barrel is very well formed, but rough as hell. It was obviously not lapped before rifling. It still shoots well, under 1½", but I should really fire lap it, to smooth it up. 