Nice. What speed you gettin' with that 13 HS6 and 255 SWC?
I checked the 13 grain HS6/255 SWC load through the short Vaquero today; once around the cylinder, the numbers look like this:
Temperature: 81 Degrees
Distance: 6 feet
Average Velocity: 1055 fps
Extreme Spread: 54.09 fps
Standard Deviation: 19.39 fps
Chrony BetaMaster II
Cosidering that you are dealing with six different chambers here, the ES and SD numbers ain't bad at all. This 4 5/8" Vaquero only gives up 20 fps to the longer gun and it is much nicer to pack.
And while this is no fine measure of accuracy, it at least confirms sight regulation with the six shots sent through the chronograph. I was roughly 10 yards from the paper and holding on the bottom of the staple, right above the group.
Great little sixgun and I really like it.