Just to let anyone know who likes to shoot Monarch SS. I was at Academy today and they let me know, this years shells are made of aluminum not brass. Not for me.
The only shells that are Brass headed are remington STS and winchester AA... the rest are just colored brass, steel heads. Federal Gold medal may be actual brass as well, but I don't reload them, so I don't know.
Try a magnet on them and check for yourself. The STS and AA will barely stick as the only thing ferrous is the primer cup.