Funny how things work out.
Got a new chrono last week only had time to run a few rounds across it due to weather and life.
.177..7.4gr springer rifle
930 fps
886 fps
964 fps
956 fps
Av vol 934
Es 78
Sd 35
The 886 reading is because I oiled the chamber so I deleted the shot from the string.
Av vol 950
Es 34
Sd 17