Benjamin Discovery Chrony test

 After pumping the Disco up to 2000 psi I set up the Chrony to see if I could find the sweet spot for the Disco. I fired 3 ten shot strings, firing ten shots at three different targets.Looking at the chrony numbers the best numbers are from 1800 psi to 1200 psi or shots 8 through 23.

The first shots start at 940 fps climb to 960 fps before dropping back to 940 fps at shot #26 

Looking at the targets I shot it tells a different story, the deviation in fps from shot 1 to shot 30 didn't have much effect on the shot groups. All three 10 shot groups can be covered with a dime and the POI didn't move.

I was focused on the chrony numbers and didn't think about the POI not moving until the next day. I set up another target and shot 10 shot groups until the POI started to drop. I got 17 more shots before the POI started moving down. That gives me 47 shots inside a dime at 10 yards. 

This air gun seems to shoot well at 900 psi and that is encouraging for CO2. I'll have to check it out on CO2 this weekend.