You reckon the cross bolt looks cool ?
Sorry, have to disagree with you there.

As for catastrophic failure, in reality how many occur
and if they do, it is normally the barrels that let go,
not the action / barrel joint.

And how many hooks have you sen "let go" ?

BTW - Are you barrels chopper lump or other ?

If you are worried about strength / holding together,
buy a Webley !!!