I have one .357 1873 with a pistol grip stock but I have a 18" full octagon on this one which is my main match rifle , but I also have another 1873 with a pistol grip stock but the barrell on it is 18" but it is 1/2 round , 1/2 octagon and I have shot both at big matches and cant tell a difference both rifles have a weight reduction to them as well though but I like shooting a little lighter rifle to each their own though.