NChunter89
Member
Today I loaded up a few loads of IMR 4064 for my 243 Winchester. The most accurate load that I found was 37.7 gr shooting an 85 gr Sierra hpbt. Here is the 4 shot group that I fired;
This group was fired today around lunchtime with the temperature outside of 90 degrees. There were no pressure signs with my brass. After reading about how this powder tends to be unstable in different temperatures, I am concerned about how this could be potentially dangerous and will affect my accuracy. Any thoughts?
This group was fired today around lunchtime with the temperature outside of 90 degrees. There were no pressure signs with my brass. After reading about how this powder tends to be unstable in different temperatures, I am concerned about how this could be potentially dangerous and will affect my accuracy. Any thoughts?