If the action works fine, no need to disassemble. Leave it alone. Unless you know the reputation of the gunsmith to be excellent, I wouldn’t have him mess with it either.
Agreed.
On this shotgun, the barrel, breach and carrier all recoil as one unit. About an hour ago, I could NOT get the action to work smoothly; it was very sticky and felt quite ‘dry’. After simple dis-assembly, cleaning and oiling, the action works readily and smoothly. Should be good to go.
If I get brave (and it freaking warms up a bit!) I may take it out back and burn up some birdshot rounds just to see how it works.
*IF* I encounter any irregularities, I’ll get it professionally refurbed.
Thanks.