Hey guys, new to M4C, but had a quick question.
May be a better question for silencertalk, but I figured someone here may know.

how much wider should the internal channel and bore of a suppressor be compared to the projectile?

ex. if you had a 5.56mm projectile, what would the diameter of the channel where the projectile travels in the suppressor. It was just on my mind after I looked at a friends suppressor.