That's pretty fast velocity for a low recoil shell--a good bit faster than the Win Low Recoil/Low Noise loads. But no one should feel much in a 6# + gun. Should make for a decent skeet load in short chambered 12's. 3/4 breaks targets well enough in 28's and 20's. No reason it won't in 12's--although I usually shoot 7/8 oz reloads in the big bores.