59 or 60
Since the twist rate was not exact my guess should be close enough!
I follow your logic (joke).
I think we've demonstrated that
twist rate measurements and techniques vary from person to person and measurement to measurement.
Therefore, to say
twist rates vary is probably a stretch since the twist rate measurements are inaccurate +/- partial turns.
Measuring twist rate of a rifle barrel is a real rabbit hole....
twist rate device
