So I ask the question,is the CVA eclipse hunter magnum that I just bought for my son safe to shoot 150 grain 777 charges?
NO! A gun which is " safe to fire" (debatable!!) with say, three 50-grain Pyrodex pellets is NOT safe to fire with 150 grains of 777!! 777 is at LEAST 10% to 15% HOTTER than other propellants! Use at least 20 to 30 grains LESS of it than any other powder! IF you are using 150 grains of Pyrodex, I' d recommend starting with no more than 90 grains of 777 with the same bullets in tht gun!