bonny,
I suggest you take a look at other(more modern) take down rifles and consider their systems. It is important that the barrel is locked in, in a vertical position without having to depend on torque to hold it. Then, I would think it is not necessary to take it down over and over, creating excess wear. Just one guy's opinion, and I haven't built a takedown rifle. For what ever it is worth, I have long thought the most effective system was that used on the WW2 Japanese type 99 paratrooper rifle. It's main drawback was it was not British and not elegant enough.
Mike
