Page 1 of 13 Pages

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C.  20549

                                  SCHEDULE 13G

                     Under the Securities Exchange Act of 1934

                             ()*

                               BRIGGS & STRATTON CORP
            ------------------------------------------------------
                                (NAME OF ISSUER)

                                  COM
            -----------------------------------------------------
                         (TITLE OF CLASS OF SECURITIES)

                                 109043109
            -----------------------------------------------------
                                (CUSIP NUMBER)

                                  December 31, 2000
            -----------------------------------------------------
            (Date of Event Which Requires Filing of this Statement)

    Check the appropriate box to designate the rule pursuant to which
    this Schedule is filed:

      X  Rule 13d-1(b)
         Rule 13d-1(c)
         Rule 13d-1(d)

    * The remainder of this cover page shall be filled out for a reporting
    person's initial filing on this form with respect to the subject class
    of securities, and for any subsequent amendment containing information
    which would alter the disclosures provided in a prior cover page.

    The information required in the remainder of this cover page shall not
    be deemed to be 'filed' for the purpose of Section 18 of the Securities
    Exchange Act of 1934 ('Act') or otherwise subject to the liabilities
    of that section of the Act but shall be subject to all other provisions
    of the Act (however, see the Notes).

                       (CONTINUED ON FOLLOWING PAGE(S))

CUSIP NO. 109043109 13G Page 2 of 13 Pages 1. NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON AXA Assurances I.A.R.D. Mutuelle 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP * (A) [X] (B) [ ] 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION France NUMBER OF SHARES 5. SOLE VOTING POWER 872,908 BENEFICIALLY OWNED AS OF 6. SHARED VOTING POWER 6,500 December 31, 2000 BY EACH 7. SOLE DISPOSITIVE POWER 1,209,147 REPORTING PERSON WITH: 8. SHARED DISPOSITIVE POWER 0 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,209,147 (Not to be construed as an admission of beneficial ownership) 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES * [ ] 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.4% 12. TYPE OF REPORTING PERSON * IC * SEE INSTRUCTIONS BEFORE FILLING OUT!

CUSIP NO. 109043109 13G Page 3 of 13 Pages 1. NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON AXA Assurances Vie Mutuelle 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP * (A) [X] (B) [ ] 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF France NUMBER OF SHARES 5. SOLE VOTING POWER 872,908 BENEFICIALLY OWNED AS OF 6. SHARED VOTING POWER 6,500 December 31, 2000 BY EACH 7. SOLE DISPOSITIVE POWER 1,209,147 REPORTING PERSON WITH: 8. SHARED DISPOSITIVE POWER 0 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,209,147 (Not to be construed as an admission of beneficial ownership) 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES * [ ] 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.4% 12. TYPE OF REPORTING PERSON * IC * SEE INSTRUCTIONS BEFORE FILLING OUT!

CUSIP NO. 109043109 13G Page 4 of 13 Pages 1. NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON AXA Conseil Vie Assurance Mutuelle 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP * (A) [X] (B) [ ] 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION France NUMBER OF SHARES 5. SOLE VOTING POWER 872,908 BENEFICIALLY OWNED AS OF 6. SHARED VOTING POWER 6,500 December 31, 2000 BY EACH 7. SOLE DISPOSITIVE POWER 1,209,147 REPORTING PERSON WITH: 8. SHARED DISPOSITIVE POWER 0 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,209,147 (Not to be construed as an admission of beneficial ownership) 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES * [ ] 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.4% 12. TYPE OF REPORTING PERSON * IC * SEE INSTRUCTIONS BEFORE FILLING OUT!

CUSIP NO. 109043109 13G Page 5 of 13 Pages 1. NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON AXA Courtage Assurance Mutuelle 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP * (A) [X] (B) [ ] 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION France NUMBER OF SHARES 5. SOLE VOTING POWER 872,908 BENEFICIALLY OWNED AS OF 6. SHARED VOTING POWER 6,500 December 31, 2000 BY EACH 7. SOLE DISPOSITIVE POWER 1,209,147 REPORTING PERSON WITH: 8. SHARED DISPOSITIVE POWER 0 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,209,147 (Not to be construed as an admission of beneficial ownership) 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES * [ ] 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.4% 12. TYPE OF REPORTING PERSON * IC * SEE INSTRUCTIONS BEFORE FILLING OUT!

CUSIP NO. 109043109 13G Page 6 of 13 Pages 1. NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON AXA 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP * (A) [X] (B) [ ] 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION France NUMBER OF SHARES 5. SOLE VOTING POWER 872,908 BENEFICIALLY OWNED AS OF 6. SHARED VOTING POWER 6,500 December 31, 2000 BY EACH 7. SOLE DISPOSITIVE POWER 1,209,147 REPORTING PERSON WITH: 8. SHARED DISPOSITIVE POWER 0 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,209,147 (Not to be construed as an admission of beneficial ownership) 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES * [ ] 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.4% 12. TYPE OF REPORTING PERSON * HC * SEE INSTRUCTIONS BEFORE FILLING OUT!

CUSIP NO. 109043109 13G Page 7 of 13 Pages 1. NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON AXA FINANCIAL, INC. 13-3623351 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP * (A) [ ] (B) [ ] 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION State of Delaware NUMBER OF SHARES 5. SOLE VOTING POWER 872,908 BENEFICIALLY OWNED AS OF 6. SHARED VOTING POWER 6,500 December 31, 2000 BY EACH 7. SOLE DISPOSITIVE POWER 1,209,147 REPORTING PERSON WITH: 8. SHARED DISPOSITIVE POWER 0 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,209,147 (Not to be construed as an admission of beneficial ownership) 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES * [ ] 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.4% 12. TYPE OF REPORTING PERSON * HC * SEE INSTRUCTIONS BEFORE FILLING OUT!

Page 8 of 13 Pages Item 1(a) Name of Issuer: BRIGGS & STRATTON CORP Item 1(b) Address of Issuer's Principal Executive Offices: 12301 W Wirth St Wauwatosa, WI 53222 Item 2(a) and (b) Name of Person Filing and Address of Principal Business Office: AXA Conseil Vie Assurance Mutuelle, AXA Assurances I.A.R.D Mutuelle, and AXA Assurances Vie Mutuelle 370, rue Saint Honore 75001 Paris, France AXA Courtage Assurance Mutuelle 26, rue Louis le Grand 75002 Paris, France as a group (collectively, the 'Mutuelles AXA'). AXA 25, avenue Matignon 75008 Paris, France AXA Financial, Inc. 1290 Avenue of the Americas New York, New York 10104 (Please contact Patrick Meehan at (212) 314-5644 with any questions.)

Page 9 of 13 Pages Item 2(c) Citizenship: Mutuelles AXA and AXA - France AXA Financial, Inc. - Delaware Item 2(d) Title of Class of Securities: COM Item 2(e) CUSIP Number: 109043109 Item 3. Type of Reporting Person: AXA Financial, Inc. as a parent holding company, in accordance with 240.13d-1 (b)(ii)(G). The Mutuelles AXA, as a group, acting as a parent holding company. AXA as a parent holding company.

Page 10 of 13 Pages Item 4. Ownership as of December 31, 2000: (a) Amount Beneficially Owned: 1,209,147 shares of common stock beneficially owned including: No. of Shares --------------------- The Mutuelles AXA, as a group 0 AXA 0 AXA Entity or Entities: AXA Financial, Inc. 0 Subsidiaries: Alliance Capital Management L.P. acquired solely for investment purposes on behalf of client discretionary investment advisory accounts: Common Stock 1,208,947 1,208,947 ---------- The Equitable Life Assurance Society of the United States acquired solely for investment purposes. Common Stock 200 200 ---------- ----------- Total 1,209,147 =========== Each of the Mutuelles AXA, as a group, and AXA expressly declares that the filing of this Schedule 13G shall not be construed as an admission that it is, for purposes of Section 13(d) of the Exchange Act, the beneficial owner of any securities covered by this Schedule 13G. Each of the above subsidiaries of AXA Financial, Inc. operates under independent management and makes independent decisions. (b) Percent of Class: 5.4% ===========

ITEM 4. Ownership as of 12/31/2000(CONT.) Page 11 of 13 Pages (c) Deemed Voting Power and Disposition Power: (i) (ii) (iii) (iv) Deemed Deemed Deemed Deemed to have to have to have to have Sole Power Shared Power Sole Power Shared Power to Vote to Vote to Dispose to Dispose or to or to or to or to Direct Direct Direct the Direct the the Vote the Vote Disposition Disposition ------------ ------------ ------------ ------------ The Mutuelles AXA, as a group 0 0 0 0 AXA 0 0 0 0 AXA Entity or Entities: - ------------ NONE AXA Financial, Inc. 0 0 0 0 Subsidiaries: - ------------- Alliance Capital Management L.P. 872,708 6,500 1,208,947 0 The Equitable Life Assurance Society of the United States 200 0 200 0 ------------ ------------ ------------ ------------ TOTAL 872,908 6,500 1,209,147 0 ============ ============ ============ ============ Each of the above subsidiaries of the AXA Financial, Inc. operates under independent management and makes independent voting and investment decisions.

Page 12 of 13 Pages Item 5. Ownership of Five Percent or Less of a Class: If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following. ( ) Item 6. Ownership of More than Five Percent on behalf of Another Person. N/A Item 7. Identification and Classification of the Subsidiary which Acquired the Security Being Reporting on by the Parent Holding Company: This Schedule 13G is being filed by AXA Financial, Inc.; AXA, which beneficially owns a majority interest in AXA Financial, Inc.; and the Mutuelles AXA, which as a group control AXA: ( ) in the Mutuelles AXAs' capacity, as a group, acting as a parent holding company with respect to the holdings of the following AXA entity or entities; ( ) in AXA's capacity as a parent holding company with respect to the holdings of the following AXA entity or entities: (X) in AXA Financial, Inc.'s capacity as a parent holding company with respect to the holdings of its following subsidiaries: (X) Alliance Capital Management L.P. (13-3434400), an investment adviser registered under Section 203 of the Investment Advisers Act of 1940. (X) The Equitable Life Assurance Society of the United States (13-5570651), an insurance company and an investment adviser registered under Section 203 of the Investment Advisers Act of 1940.

Page 13 of 13 Pages Item 8. Identification and Classification of Members of the Group. N/A Item 9. Notice of Dissolution of Group: N/A Item 10. Certification: By signing below I certify that to the best of my knowledge and belief, the securities referred to above were acquired in the ordinary course of business and were not acquired for the purpose of and do not have the effect of changing or influencing the control of the issuer of such securities and were not acquired in connection with or as a participant in any transaction having such purposes or effect. Signature After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Date: February 12, 2001 AXA FINANCIAL, INC.* /s/ Alvin H. Fenichel Alvin H. Fenichel Senior Vice President and Controller *Pursuant to the Joint Filing Agreement with respect to Schedule 13G attached hereto as Exhibit I, among AXA Financial, Inc., AXA Conseil Vie Assurance Mutuelle, AXA Assurances I.A.R.D Mutuelle, AXA Assurances Vie Mutuelle, AXA Courtage Assurance Mutuelle, and AXA, this statement Schedule 13G is filed on behalf of each of them.

                                                                 EXHIBIT I

                                   JOINT FILING AGREEMENT
                                   ----------------------

               Each of the undersigned hereby agrees that the Schedule 13G
          filed herewith is filed jointly, pursuant to 13d-1(f)(1) of the
          Securities Exchange Act of 1934, as amended on behalf of each of them.


               Dated: February 12, 2001

               AXA Financial, Inc.



               BY:  /s/ Alvin H. Fenichel
                  -------------------------
                  Alvin H. Fenichel
                  Senior Vice President
                  and Controller



               AXA Assurances I.A.R.D. Mutuelle; AXA Assurances Vie Mutuelle;
               AXA Conseil Vie Assurance Mutuelle; AXA Courtage Assurance
               Mutuelle, as a group, and AXA

               Signed on behalf of each of the above entities



               BY:      /s/ Alvin H. Fenichel
                  -----------------------------------------
                  Alvin H. Fenichel
                  Attorney-in-Fact
                  (Executed pursuant to Powers of Attorney)