Lands shifting..

[Kevgun]

The drop in velocity could just be a temperature sensitive powder?

This was my thinking also.

 

[gixer1]

Well, the results are in…increasing the length by .020” (the same difference between the lands at new and now) with no change in charge weight did bring back the velocity to pretty much exactly what it was…see below screenshot from the Garmin and also the groups.

I did go up .4gr in .1 increments but didn’t really see much change in velocity and was seeing a negative effect on ES, so basically I will keep the charge weight and just increase the length 20 thou…