I love these Treso and CVA measures but I found I need to be able to more consistently charge the cylinder.
So I came up with a telescoping attachment for the CVA1400 and Treso Brass Flask.
Made a fitting from an old spout. The tube is clear lucite. I drilled the fitting to accept the tube and then epoxied the tube into the fitting.
My early design had the graduations on the tube but they wore off to quick so I marked the plunger on later versions.
This one is not marked yet, but you get the idea.
Diameter of the tube easily works to fill a .31 caliber revolver or larger. It also works well with charging cartridges for BPCR.