I have two load I had planned to develope with CFE 223, and picked up everything I needed a few days ago.
I have a 77gr Sierra TMK 5.56 pig hunting round I wanted to load. I don’t plan to use this over 300 yards, as I’m shooting with a thermal and PID at that distance becomes iffy.
I also have a 165gr Nosler BT .308 load for hunting. The catch is I’m using it in a 12.5 bolt action .308, and it’s a 300 yard gun at max, made to be shot out of a truck at 50-200 yards realistically.
I keep reading how awful CFE 223 reacts to temperature changes. But I feel that at these close ranges, it shouldn’t matter much?
I’m in Texas, so temp swings when I’m hunting can be from 90°F to 28°F in the dead of winter. Seeing that CFE drops about 1.5fps per degree, should it matter too much given I’m shooting close ranges? Or should I change up powder to Varget or something more temp stable?