Quote Originally Posted by lysander View Post
Not if you want an accurate measurement.

Bore micrometer:



Or, if you are less extravagant, telescoping gauges and an outside micrometer:




Oh, and the clamping force is nowhere near 10,000 pound as someone stated in that thread.

With properly greased threads the clamping load is 1,800 pounds to 4,800 pounds.
Mil-spec barrel nut torque is 30-80 ft lbs. So 1,800 lbs of clamping force is on the lower torque end (30 in lbs) and 4,800 lbs would be on the 80 in lbs side?