Last year, before I had my ‘76 in 50-95 re-barreled, I played around with duplexing. Has anyone else had success? I use 4759 and regular Goex ffg. My notes say 8 grains of smokeless and 70 grains of black. In theory that should be a 92 grain BP equivalent. I used the AA 350cl bullet and a WLRM primer. I fired 20 rounds with no fouling problems, which is my goal.
Duplexing requires load development to get the right combination for accuracy. It won’t be as good as pure black, my goal is to be able to shoot 20 rounds without loss of accuracy.
Just curious on others experience.