Three state Assembly Democrats have proposed a ban on “bump stocks,” which the Las Vegas shooter used to turn semi automatic rifles into fully automatic ones. Madison Representatives Lisa Subeck, Chris Taylor, and Terese Berceau introduced a bill to ban the sale, possession, and use of bump stocks in Wisconsin — similar to a ban congressional Democrats have proposed at the national level. Semi automatic weapons are legal but fully automatic ones are not. Subeck says it makes no sense to ban automatic guns if the bump stocks remain legal. U-S House Speaker Paul Ryan of Janesville says Congress needs to look into it, and U-S Senate Republican Ron Johnson of Wisconsin says he has no problem banning bump stocks.