I have been working up a load with RL23 in my .284 Win over the winter and it is now pretty hot here , so I have some numbers to show over a wide range of temperatures with some SD/ES numbers. All numbers listed are for 10 shots, so make of that what you wish (is that enough to be statistically meaningful?). All are for the same powder charge, same cases, same bullets and same seating depth. These numbers are all from the same Labradar, from the same range, positioned exactly the same way. My gear was all set outside for the same length of time prior to the test, approximately 20 minutes, as the range was cleared and targets posted. I believe the ammo/rifle was close to ambient temperature when shot. Lastly, all of these numbers are for the 197g SMK in a 1:8 twist barrel.
Temperature/Avg Vel/ES/SD
8-12 degrees: 2718/10/3.4
38 degrees: 2723/21/5.4
68 degrees: 2718/25/6.3
88 degrees: 2702/16/5.5
I was a little surprised to see the temperature go down this week when I tested at 88 degrees.
Hope this helps someone.
Wade
Temperature/Avg Vel/ES/SD
8-12 degrees: 2718/10/3.4
38 degrees: 2723/21/5.4
68 degrees: 2718/25/6.3
88 degrees: 2702/16/5.5
I was a little surprised to see the temperature go down this week when I tested at 88 degrees.
Hope this helps someone.
Wade