an interesting feature of the browning a5 auto loading shotgun is its ability to cycle a variety of loads, which create different levels of felt recoil...this is accomplished by changing the positioning of friction rings in their relation to the action recoil spring...for those not familair with how the a5 works, see the link below...
https://www.thefirearmblog.com/blog...anding-auto-5-friction-ring-orientation/sooo, what about using an a5 as a test platform to determine the suitabilty of shooting particular loads in old doublegons, that you wish to protect from heavy recoil?
for example, if a particular load will not even cycle an a5 set up for light loads, then is that load most likely suitable for shooting in your old doublegon?
