"Inherent" accuracy is of course a totally different ballgame than practical accuracy. One might assume the most "Inherently" accurate shotgun bbl would be one which had its bore axis in direct line with the center of its butt plate thus its point of contact with the shooter giving absolutely no muzzle movement except straight back. Such a position of course would be a "Bugger" to point & practical accuracy would be quite worthless.
This is I think what Chuck was hinting at, but if a gun is properly regulated & stocked so it hit where one looks, who cares about its "Inherent" or Theoretical accuracy. I have read for years that an Over/Under is "Supposedly" inherently more accurate than a SxS, but who cares, a SxS just has much greater appeal to me. I shoot for fun anyway, if the difference amounts to a or in the hit/miss ratio per thousand rounds it is really of no consequence to me.
The psychcological effect of "Pride of Ownership" can actually have a much greater affect than inherent accuracy anyhow.