nicholasjohn
Well-Known Member
if you want to measure off the ogive, depending on your tool you still kind of can. Instead of a .284, use your .264, instead of .264, use .257, then .243, and so on. Wont measure off of exactly the ogive, but it will measure off a consistent spot on the bullet nose.
Or just measure OAL.
You could also use the diameter bushing you would normally use, but it would contact the bullet at the top of the first ring, which is closest to the nose and full bullet diameter. As I understand it, everything forward of that is under bullet diameter, and wouldn't touch anything in the throat or bore of the rifle. That forward driving band is the first point of contact, and that's where your comparator bushing would measure from.