Are right and wrong convertible terms, dependant upon popular opinion?
William Lloyd Garrison (not a political punch unless you receive it as one, and you are the one who put "liberal" in parens next to "tyrant," so don't politicize this thread PLEASE. And, if you do, man up and take the shot!)
The commonly accepted knowledge on chokes for steel shot is this: since steel is harder than lead, it does not deform from round as lead did, nor does it to compress as it passes through a tight choke. the deformed lead pellets had the effect of enlarging a pattern, as the deformed shot became outfliers. by and large this does not happen with steel, so full chokes are not necessary or desirable as they may damage your gun (ballon the barrel) if used with steel. I've shot plenty of gees and ducks at long yardage using improved cylinder. It's less a matter of choke selection than of actually hitting them in the center of the pattern.
As for larger shot, this is not a physics course, but so all may understand: mass times velocity is?.... inertia in motion, or momentum... sometimes referred to as force, shock power, etc. the same logic applies to rifle bullets, so I'm too far out on a limb here. ergo, BB's have more mass than No. 4's, which in turn has more mass thank 6's. the common understanding here is that if you shot lead 4's you'd now choose steel 2's. If you shot 2's you'd go for BBB, my personal favorite as it kill's 'em all, and with geese it is particularly good at breaking large wing bones.
A good read: Impeachment: the Founders cure for Royalism by John Nichols. he makes the point that impeachment is good politics for both liberla and conservatives as it put either on the right side of the consitution, to keep this a country of laws, not a country of men, as the founders intended.