The club hosts of number of regular matches each month:
Smallbore rifle -1st Saturday, 9:00 AM, on the rifle range. Sign-up from 8:00 to 8:45.
Bullseye pistol – Suspended until a new match director is found
Hi-Power rifle – 2nd Sunday, 9:00 AM, on the rifle range
CMP Rimfire Sporter match – 3rd Saturday, 9:00 AM, on the old Bullseye range
Action pistol – 4th Saturday, 9:00 AM, on the cone range
Southern Oklahoma Sportsman's Club, Inc. 
OKC Gun Club website shows a match at your location on Nov 14, 2015. Can you confirm this.
As far as I know the regularly scheduled Bullseye pistol match will take place on the 14th. They sometimes suspend those matches during the colder months though, so you might want to double-check with Ben Randall, the Bullseye match director. His email is bdrandall@sbcglobal.net.
What are the rules and distances for the his power rifle match?
We use the NRA National Match High Power Rifle rules, and the matches are shot at 100 yards.