With the gun assembled, stick a rod or dowel down the barrel until it's against the bolt. Mark that and measure it.
That's the way we have to do it "up here" for the National Registry ... and to verify the guns against a common data
base ( FRT - Firearms Reference Table) for registration.
PS: The whole registry system sucks ... the long gun registry
doesn't prevent crime whatsoever - just penalizes the
average gun owner. Criminals don't register their guns.
Saying "guns cause crime" is like saying "pencils cause
spelling mistakes" ... pure rubbish.
