"Does Ruger even make revolver chambered in .44 Special?"
Yes, although some are distributor exclusives and some are regular catalog items. Off the top of my head I believe you can find the following Rugers in .44 Special:
Vaquero (it's a New Vaquero but the "New" is missing from the rollmark)
Vaquero Sheriff's Model
Flattop Blackhawk (blued or stainless)
Flattop Blackhawk Bisley (Lipsey's Exclusive)