Pretty sure the answer is no, because during the time it was cut off, it would be violating the law.
I believe there is a process for requesting permission to move a serial number in a single incidence, but my understanding is it's a PITA and the answer is generally, "NO," anyway.
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Not another dime.
Going to test velocity of the Gold Medal wadcutters in different barrel lengths.
Viable ballistics in the 1” barrel