Re: Velocity dropping each shot?
I just went through the same thing the other day with my Pro Chrono in freezing temps, 25-30. I brought it instead of my Oehler because it get usually gives very similar data with less set up time. I got 100 FPS spreads, also starting high then dropping. This occured even on loads that were previously tested. I usually bring loads that have confirmed velocities just to have a standard of comparison. Went and got the Oehler 35, and all was well. The chronograph was definitely effected in my case.
"Let us speak courteously, deal fairly, and keep ourselves armed and ready"-T. Roosevelt