02/23/1993 By Helen Dewar Washington Post Staff Writer Congressional advocates of legislation to require a waiting period for handgun purchases dusted off and reintroduced the measure yesterday, guardedly optimistic that President Clinton's support will overcome obstacles that doomed the bill for the last six years. The bill, named for former White House press secretary James Brady, who was seriously wounded in an attack on President Ronald Reagan in 1981, was approved by both houses of Congress last year but died in the Senate in a partisan crossfire over anti-crime legislation to which it had been attached. President George Bush had said he would sign the bill only as part of broader anti-crime legislation. But Clinton supported the measure without qualification during his campaign and listed the Brady measure among his legislative goals in his State of the Union Message last week, saying, "If you pass the Brady bill, I'll sure sign it." "Mr. President, we intend to do just that," said Senate Majority Leader George J. Mitchell (D-Maine), standing before a large sign emblazoned with Clinton's words at a news conference called by the bill's advocates to launch the drive for enactment by summer. But neither Mitchell nor others indicated they thought that passage would come easily - a point reinforced by the effort that went into the news conference, which featured congressional sponsors of the legislation, Brady and his wife Sarah, police groups that have endorsed the bill and local school children, including friends of youngsters killed by gunfire. One of young people, Julian Rowand, a student at St. Albans School for Boys, told of a friend who was gunned down in his apartment house doorway last December and said, "His death made me realize we have to do something to stop the senseless violence . . . . I'm afraid it may be me next." While expressing confidence that the bill will eventually pass, Sen. Howard M. Metzenbaum (D-Ohio), the bill's Senate sponsor, warned that attempts probably will be made to entangle the proposal in other controversial crime-related issues, such as death-penalty appeals. Metzenbaum urged colleagues to avoid such "detour routes" and insist on a vote on the Brady bill as separate legislation. But Rep. Charles E. Schumer (D-N.Y.), chief sponsor of the measure in the House, said the bill may have to be combined with broader anti-crime legislation if that appears to be the best way to assure prompt passage. Metzenbaum said he hopes the Senate can act on the legislation in no more than 60 days. Schumer said his goal is to have the legislation on Clinton's desk for signature by Congress's August recess. Clinton has not indicated whether he wants the bill passed separately or as part of a broader measure, and legislative strategy on the issue is not likely to take shape until the Senate acts on the nomination of Janet Reno as attorney general and other key positions at the Justice Department are filled. As introduced in the House yesterday and prepared for introduction in the Senate Wednesday, the bill is identical to the 1991 legislation in calling for a waiting period of five business days to allow police to conduct background checks of prospective handgun purchasers. The background check is aimed at barring sale of handguns to felons and others who would be barred by law from purchasing the weapons. The waiting-period requirement would be phased out as states, with some federal financial assistance, upgrade their criminal record systems with the ultimate goal of a central national record system that dealers can tap for instantaneous information about the background of a would-be gun buyer. The bill anticipates that a national records system would be established within five years. Any state that fails to bring its record-keeping system up to a national standard, or keep it there, after the national record system is fully operational would have to continue requiring a five-day waiting period for handgun purchases. Although opposed by the powerful National Rifle Association, the waiting-period provisions were approved last year by votes of 239 to 186 in the House and 67 to 32 in the Senate. But efforts to pass the measure as part of a crime bill or as separate legislation failed in the Senate, largely because of the election-year partisan dispute over other anti-crime provisions - the same kind of threat that the legislation faces this year.