I was coming here to ask the same question after lurking around a few days and finally buying the pistol I'd been eyeballing today. I'm not meaning to hijack a thread, but I have the same question.
I purchased a brand new 629-6 6" barrel. It has not yet been fired, but after getting it, I noticed some rotational cylinder play. Granted it's not much, but enough to make me ask the question of is this normal.
After reading the above replies, I am still a little concerned because the cylinder does not seem to tighen up when cocked.
How much play is to be expected on a new gun, both cocked and uncocked?