• 1 WEEK LEFT: This Target Haunts Me Contest

    Tell us about the one that got away, the flier that ruined your group, the zero that drifted, the shot you still see when you close your eyes. Winner will receive a free scope!

    Join contest

chrony alpha master chronograph

Re: chrony alpha master chronograph

I have used everything from el cheapo ray-o-vacs to those silver lithium (expensive) ones. I think 9 volts is 9 volts, it only a question of how long they last.
 
Re: chrony alpha master chronograph

If the figure you got was higher than expected, make sure you have opened the Chrony completely; if it's not perfectly flat the sensors will be closer together and the velocity will be higher.

If the figure you got was slower than expected, make sure you are shooting across the sensors in a very straight line, no up or down or left to right ot right to left; it has to be the shortest route possible. It is also not impossible that books inflate their velocity a little.