Speaking of the friction rings and bushings has any one seen or heard of a video showing proper set up for light and heavy loads
www.browning.com
On the 2 3/4", the two piece brass ring needs to be on top with the split rings lined up together. The taper of the brass ring pointing to the end of the barrel mag hoop. This two piece ring position never changes on this part. The steel ring/spacer is the one that is moved. I find it easier to remember that the flat side of this ring always faces the big recoil spring. On heavy loads, it is placed under the two piece ring......with the flat side against the spring.
On light load, the steel ring is moved to the bottom of the mag tube up against the receiver, again with the flat side against the big spring.
Some of the forewood have a map on the inside that shows the ring placement.
So on heavy loads, 1.-the spring goes on the mag tube first, 2.-then the thin steel ring (flat side to spring) 3.-brass ring with the more bevelled end facing forward, 4.- barrel, 5.-wood and 6.-lastly the cap with the thread.
Light loads starts with 1.-the thin steel ring up against the receiver (flat side against the spring) 2.-the spring, 3.-two piece split ring, bevel forward,
4.-barrel, 5.-wood and then 6.-the threaded cap.
I hope I haven't confused you. If so, find your way through the Browning site.
It is referenced there.
Looky.