Welcome to Chief Okemos Sportsman’s Club!

COSC is a family-friendly gun and archery club in Dimondale, Michigan, located about 15 minutes west of Lansing.


To promote the safe and responsible use of firearms and archery activities in the Mid-Michigan area

C.O.S.C. Pledge

I give my pledge as an American to save and faithfully defend from waste the natural resources of my country, its air, soil, and materials, its forests, waters and wildlife.


Join or Renew your COSC Membership

 Club News

  • Please see the club newsletter on this site for our April 2017 news and updates on upcoming club activities
  • Spring has sprung and that means shooting sports are getting back into action. Please visit our Shooting Sports page to find shooting discipline info.
  • Ladies, Ladies Ladies 2017 Planning Meeting is Tuesday, April 4 at 6:30 p.m. Come help us plan our upcoming shooting season or come to learn more about our ladies only program.
  • The Turkey Shoot that was scheduled for April 1 has been moved to Saturday, April 8 beginning at 11:00 a.m. Come out to shoot and maybe win a prize (or two)!
  • The Reloading Class is scheduled for Saturday, April 8 and Saturday, April 15 at 9:00 a.m. See the club newsletter for more details.
  • Club Instructor & RSO Meeting will be Saturday, April 8 at 11:00 a.m.
  • Jr. and Ladies Basic Shotgun Class will be Saturday, April 15 from 9:00 a.m. through 3:00 p.m.
  • Cowboys and Cowgirls can get their Cowboy Action Shooting on by visiting the club on Saturday, April 22 with shooting beginning at 9:00 a.m.
  • This year’s Black Powder Shoot will take place on Saturday, April 29 beginning at 8:30 a.m.
  • Clubhouse Rental information can be found on our Clubhouse page.
  • Please visit the Join or Renew your COSC Membership link, above (current members, it’s time to get your renewal in for 2017 membership).
  • Club By-Laws – If you wish to review the newly revised by-laws, review this pdf.
  • Is your home address up-to-date with our Membership Committee? If not, please let us know.