How much effort is the average bodger going to make to remove a screw without damaging it?
You are lucky if they even know the slot is parallel, and a screwdriver isn't.
Doubly lucky if they never take a screwdriver to any part of an old double.
And then, without promoting bodgery, "How many times do you actually WANT a former owner after the innards of an old shotgun?"
Which goes to "How much effort and TIME are you really going to expend (I won't say waste) in your efforts to remove 1 screw on a shotgun you hope to never have to get inside of ever again?"
if your livelihood is at the bench, that's a whole different matter.
Same with making spanners for removing risk set strikers.
How long, and how hard, for Why? Again?
