confused over chrony results

[cheewee]

Take a look at the last post graph in this thread.
http://www.crosman-air-pistol-owners-forum.com/board/index.php/topic,7333.45.html

It is what I got using a .22 10" barrel with no mods except an experimental probe and a valve reducer. See how they compare to yours. Granted, 177 vs 22, but the variance should not be much diferent.

Rich

Rich your numbers look good
when i get home later today i will try a 40 shot string and see how it looks

[breakfastchef]

Your graphs start at 450 fps and go up to 520 fps. If using Excel, the scaling is automatic. Try right clicking the Y axis  (fps), choose Format Axis from the pop up menu, click the Scale tab and change the value for Minimum to 400.

[cheewee]

thanks breakfastchef got it now will try it on my next string

[cheewee]

ok now i am getting somewhere, moved indoors and now have a way more consistent string, whats the go with that?
average 506.8 fps

[1377x]

temps more stable
no sun light interference