jlow said:Once I set the chrony up this way, I put a laser bore sighter into the bore and now I don't look at it but put my hand right in the middle of the chrony screen. I will adjust the chrony so that the red dot on my hand will go through the middle of the screen and at the right height. I do this for both the two screens front and back.
Just make sure that you remove the laser bore sighter from the bore if it's the kind that is inserted in the muzzle (the cheap ones). Ask my how I know this is important :'( :'(
A better, and far safer laser bore sighter is the chamber mounted version that has to be removed before you can chamber a round. If one insists on using the muzzle mounted kind then figure out how to attach a piece of cleaning rod to it that will stick out the breech end of of the barrel. That is unless you want a nice bulge in the barrel about 2-1/2 to 3" back from the crown.