Jerry's thought that your pilot bushing has been swaged too small makes good sense. Another option would be to ream the one in place to the correct size, but that would require a reamer.
I’m going to Harbor freight and pick up a good caliper
HA! Good luck. That has to be a classic oxymoron. HF and "good" in the same sentence. Although their digital calipers are probably as good as what's available on Amazon.
