Originally Posted by ovastafford
I appreciate all the responses. My Chronograph was giving me around 2900 average. Of course that was on a different day conditions etc. My load is 51.9 grs of 4831sc lapua brass around 20 thou off the lands. My barrel is a 26" Brux 8 twist.
I know this powder is not very temp sensative but how much velocity change can I expect going from say 105 degrees to 85 and all the way to 30 degrees Fahrenheit?
I don't know what the velocity difference is but I have found that under 500 yards my impact for hunting is negligible. One click downward for each 25 degrees colder out to 700, 2 for each 25 between 700 and 1000. My clicks are .33moa. This works is for me with my turrets.