Reggie Jackson moved into a tie with Ted Williams and Willie McCovey for the No. 8 spot on the all-time home run list when he hit his 521st career homer last night in the first inning of the first game of a doubleheader between his California Angels and the Mariners in Seattle.

The Mariners won the game, 6-5, on a home run by Phil Bradley with two out in the ninth.

In the second game, Brian Downing homered as California won, 4-3.

Jackson's 18th homer of the season came off Frank Wills with a teammate aboard. Jackson had not homered since July 30 and last had an RBI on July 31. Jackson, 39, has played in 18 major-league seasons.

His 521st was Jackson's 96th homer with the Angels. He hit 254 with the Kansas City and Oakland A's, 27 with the Baltimore Orioles and 144 with the New York Yankees. Jimmy Foxx, with 534 home runs, and Mickey Mantle, with 536, are the next targets for Jackson.

Jackson's 521st home run came on his 8,957th career at bat. Williams hit 521 in 7,706 at bats, and McCovey in 8,197.

Mike Schimdt, with 444 home runs, is second to Jackson among active players.