02/27/1993 MILWAUKEE (UPI) -- U.S. Representative F. James Sensenbrenner Jr. (R- Wis.) said Friday that the shifting of 19 Congressional seats from the Northeast to the South may put the Brady Bill in jeapordy. The Wisconsin Republican said that because of the potential votes in Congress supporting the measure shifting as a result of redistricting and the fact that both leadership positions in the House and the Senate being opposed to the measure, the Brady Bill may fall on hard times. Sensenbrenner introduced a bill in the House Tuesday, requiring background checks on purchasers of all types of firearms. He said, however, until the national computerized check system is installed, a five-day waiting period wouldbe required of handgun purchasers only. The bill is named after James S. Brady, former President Ronald Reagan's press secretary who was shot in the head and suffered serious brain damage after a 1981 assassination attempt on the president. Wisconsin is one of only five states which already have computerized background checks. The state also requires a 48-hour waiting period for handgun purchases.