I had an opportunity to try some loads in cooler temps and compare to warm temps. I load up four of each load and fired two at an indoor range (69 deg) and two outside (19 deg). The rounds sat out all night in temps down to 8 deg. A Magnetospeed chrono was used for all.
Not exactly a statistical sample, but it's a start.
I created a separate thread, but saving here as a reference also.
185 TTSX, 48.5gn TAC Warm: 2658, 2654 Cool: 2576, 2599 Note: the warm was quite a bit slower than I've seen in the past with this load. Slow lot of TAC?
