Pressure is not the same as recoil, ed. That has been discussed, at length, right here, prior to today.
I can change what loads cycle or don’t cycle your A5 with a drop of oil on the bronze bushing. Or, substituting a worn recoil spring for one that isn’t. Or a badly worn action spring.
Part of the genius of the A5 action is that the thing will cycle just about anything you stuff in it, provided it is somewhat clean and has most of the parts it was built with still installed.
Your question as to a design that measures pressure accurately has already been answered, with piezo devices, installed in barrels specifically to measure pressure.
Best,
Ted
