Seems to me that there was a lengthy thread on this subject some time ago.

The interrupted thread sounds good until you have to cut the slots in the thread of the action which must be hard to get just right.
Westley Richards had a version with lugs on the barrel shank to lock into the action similar to the way the bolt engages the action. That is a very neat way to mount a detachable barrel but I have heard of some getting loose over time.
That's probably why Jeffery decided to go with the hand tight barrel and a fixing screw on the side of the receiver ring.
Many take down Mannlichers are similar in concept to the way Jeffery did it except they often use the front action screw to hold the barrel tight.
There are many many variations of bolt gun take down systems.