I look at reamer prints and see two dimensions that are what I would think is freebore as I understand it. One is from the end of the case portion of the chamber to a point in in the bore before where the rifling begins. Then there is a small chamfer that goes from the case neck portion to the grove diameter. The second measurement goes from the front of the bevel to the same point of the first measurement I mentioned. I see another measurement that is from the boltface to the line that these other measurements stop at, is labeled as "LEAD". I see another measurement from the boltface to where the rifling seems to begin, and this one is marked "THROAT". Looking at these measurements how do I determine what the freebore is? Buy maybe my understanding of freebore is incorrect. Freebore as I understand it is the measurement from the end of the case portion of the chamber to the origin of the rifling. Is this corrrect?