Originally Posted by jimbothepunk
ive got a chrony for the weekend and im just wondering how far away from the rifle i should set it up
I like to set up in increments that equal the screen spacing so I can back up to the muzzle for
an actual MV because even at 15 feet there is a loss of velocity.
Example: screen spacing is 4 feet I will set the screens at 8 Feet, 12 feet or 16 feet depending
on the size of the rifle and calculate backwards from the front screen the loss from the front
to the back screen. If I have a drop of 10 ft/sec between the front screen and the back and I'm at 8 foot from the muzzle I just add 20 ft/sec to the velocity and I am very close to the
actual muzzle velocity.
I hope that makes sense the way I explained it .
J E CUSTOM