I have used a Hornady Powder Measure for over 10 years. Mine is not specifically a Pistol Measure as you mention, that must be something new since I bought mine. The one I have came with two Micrometer Chambers and will drop about any powder weight you desire. It is very accurate unless using long extruded powders and is easy to set up. As for dependability, it is over 10 years old, been used a lot and has never needed any repair.