I think it depends on whether you reinstall the same stock and how precise of a zero you want. You'd probably still be on the paper, but I doubt the shots would be where they were before removal-too many variables, and screw tightness holding the stock on would make a difference(unless maybe with a glass bedded action and torqued screws turned back to exactly the same setting).
Any experts out there, if I'm wrong just let me(us) know.