Charter Arms has chambered quite a few lightweight Bulldog sized, short barrel pistols, in other calibers than 44 Special. Obviously, 45 ACP and lesser known ones like the 45 LC and (supposedly) 41 Magnum.
The 45 ACP version is called the
Pitbull.
The Pit Bull’s unique design provides a dual coil spring assembly located in the extractor which allows for easy cartridge insertion and retention in every chamber of the revolvers cylinder. This patented system allows the shooter ease of ejecting spent cartridges for immediate reloading...
charterfirearms.com
The
Mag Pug is the 357 Magnum version.
Charter’s .357 Mag Pug is a home protection revolver second to none. Compact, yet extremely powerful, the 5-shot Mag Pug has the stopping power to dispatch any and every threat to your home and family. Charter’s .357 Mag Pug: arm yourself with confidence!
charterfirearms.com
Their site no longer lists the 45 LC or the 41 Magnum.
IMO, the 44 Special is the most versatile for the handloader. Especially, if you already load and cast for the 44 Magnum. The Bulldog can be loaded from mild to semi wild. It will handle Skeeter's load but continual use is not recommended. I doubt anyone would want to shoot Skeeter's load in that lightweight pistol, very much. The Bulldog bites on both ends.
The powder capacity of the 45 ACP case will be the limiting factor on velocity. Also, bullet weight stops, where the 44 Special, pretty much begins for a fixed sighted revolver.