I will be looking for a #54 but in the meantime I used the open sights today and am shooting six inches high at 50 yards. The rear sight is as low as it will go so now I guess I have to lower the front sight. It looks like the original Lyman#26 with a small ivory bead. It is really tall so I think a shorter insert will work. Does all that sound right? I've been shooting with a scope for so long I've about forgotten open sights. Thanks for all the advice.

Bill