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

On a very sad note we have lost one of our outstanding members; Rosemary DiPonio passed away on Sept 15, 2016.

Memorial Service for Rosemary DiPonio,  Oct 8, 2016 at 12:30 PM

On Oct 8, 2016 we will be holding a memorial service in honor of Rosemary DiPonio. The Club will provide drinks and meat for the service. We ask that friends who attend please bring deserts or salads or other dishes to pass. Please contact Sharon Whaley with any questions.

  • Club By-Laws Update – Members, please plan on attending the upcoming membership meetings (2nd Monday of the month at 7:30 p.m.) to share your ideas and opinions as we move through the process of updating the club by-laws.
  • Please see the club newsletter on this site for our October 2016 news and updates on upcoming club activities.
  • Visit our links under Shooting Sports and Archery to find a shooting discipline for you and your family.
  • CPL Classes for 2016 – classes will be offered in May, July, September and October
  • Please visit the Join or Renew your COSC Membership link, above.
  • Is your home address up-to-date with our Membership Committee? If not, please let us know.