This is from the 2010 Standard Catalogue of Firearms,,,
Trooper MK III
This revolver was intended to be the target-grade version of the
MK III series. It is offered with a 4", 6", or 8" vent-rib barrel with a
shrouded ejector rod similar in appearance to the Python. It is
chambered for the .22 LR and the .22 Magnum, as well as .357
Magnum. It features adjustable target sights, checkered walnut
target grips, and is either blued or nickel-plated. This model was
manufactured between 1969 and 1983.
NIB Exc. V.G. Good Fair Poor
750 400 325 200 150 100
I own a rugged 4" in .357,,,
And a pristine 6" in .22,,,
Both great shooters.
Aarond