Not an "OC event" but one of my favorite types of matches:
Saturday the 21st is a local ViMSAR match, if you have a military as-issued semi-automatic service rifle of M14 era or older. Most guys shoot it with an M1, but there are some FAL's, SKS's, AK, etc. The latter two (and the M1 Carbine) have a disadvantage because while the targets are full size steel plates, the ranges are 150-400 yards. No one ever gets a perfect score, but no one does too poorly, either; it's just about perfect for fun. It would be free since it would be your first match, too.
There is also usually the "Sniper" side match, using any vintage military as-issued rifle with a scope on it. The scope and mount can be modern, but must remain on a fixed power (6X or less) for the duration of the match. You can shoot either match or both.
I'm sure a lunch or dinner can also be arranged. We are always looking for an excuse if we can find the time (the hard part).