A question about Frankfurt-style cases regarding so-called free will

Intended, as I understand it, to demonstrate the putative fact that moral responsibility does not require having been able to do otherwise, aren't the cases rather similar to one in which I pose you a dilemma like the following, and claim that you will do the same thing in either case (yet be blameworthy in one and not the other, of course)? "Either you pick up this gun in your hand, point it at so-and-so, and pull the trigger, or I will temporarily incapacitate you, put the gun in your hand, move your arm so that it's pointing at so-and-so, and curl your finger on the trigger so that the gun goes off."