Looks fine to me. Any temperature is fine to test loads in. I personally test loads in 50 degree or warmer weather, I don’t shoot as well when I’m miserable. Blc2 is a temp sensitive powder, what is safe in the cold weather, may be high pressure in hot weather, you just need to test it out. I have an armalite ar10 .308. All of my COAL’s are between 2.780 and 2.800, and function fine.


JTD