My old barrel was the blued 22" Ruger tube from 1982. This same load but using the CCI 250's was worked up in it & was completely safe & reliable, primer edges had a bit of radius on them & it would group 1-1.25" MOA consistently.
This brass had been fired 3-4x, but primer pockets were still tight. I'm going to tear the remaining 17 rounds down & restart the load, will try the Federal 210m standard primers 1st.
41
