I'm learning the hard way for novice about temperature changes and powders. Curious as to what powders for 6.5CM, 308Win, 300 WM, 338LM that you are using that are less sensitive the temp changes in going from the house to outdoors in cold weather. What are best practices for ammo/gun when temperatures go from house(70-72 degrees) to outdoors(40-50 degrees)?
I ask this since I was using IMR 4350 ( due to scarcity of H1000 and H4350) and went out in 40 degree temp w/o allowing ammo to cool down. My groups were lousy as compared to 50+ degree days shooting 0.5MOA and less groups.................Like I said, learning the hard way.
Should load development always be done in hotter weather?
Thanks for your assistance.
I ask this since I was using IMR 4350 ( due to scarcity of H1000 and H4350) and went out in 40 degree temp w/o allowing ammo to cool down. My groups were lousy as compared to 50+ degree days shooting 0.5MOA and less groups.................Like I said, learning the hard way.
Should load development always be done in hotter weather?
Thanks for your assistance.