We're talking about WORST weapon here. Not "subpar compared to the best weapon" but "so useless it's not even worth considering as part of your inventory." That means no sniper rifle variants make the list. And as someone who got great use out of Recharger Rifle early in the game, I'd beg to differ on that one too.
So, has anyone EVER had any cause to use the Silenced .22 Pistol? I have tried using it and found it so useless I always ignore or drop them. Even a sneak attack critical to the head isn't enough to kill most characters with this gun, which means they start shooting you, which makes the "silenced" part completely irrelevant. Since the 10mm Pistol can get a silencer, and ridiculously large silenced rifles have no penalty being used at close range (shouldn't you break your wrist when shooting this from the hip?), there is no reason to this even for roleplaying purposes (as it's hard to feel like
Leon the Professional when shooting someone in the head just makes them mad).
Admittedly, Rolling Pin is still a contender for
worst weapon. Low damage, zero crit multiplier. Good for comedy and not much else. I'd still argue that Silenced .22 is worse in a way, though, as it LOOKS like it might be useful, which might trick you into trying to use it.