Sounds like we have a bigger NorCal contingent of Sniper's Hide than I thought. Hi, another SF person here.
I've been to Circle S and wasn't very impressed. The last time I went, several months ago, the rifle range was mostly unusable past 100 yards. They piled the 100yd berm so high that it made it basically impossible to see 200+. If you go, make sure to wear waterproof boots and expect them to get muddy.
https://www.sonomashooting.org/circles.html
Sac Valley is nice and has a usable 300 yd range. You have to "qualify" to use the 150-300yd range, but that just entails showing them a picture of a target you shot, assuming you shot decently. They're worried about people launching bullets over the berms and hitting cows on the other side. They also have monthly matches. I have not been to a match yet but plan to. They make use of a 1000yd range and a steel range for matches. NCPPRC also hold a couple clinics each year.
https://ncpprc.com/ http://www.sacvalley.org/
Richmond Rod & Gun Club has a 200yd range that is members only. They also hold USPSA and IDPA handgun matches that you don't need to be a member of the club to attend.
http://www.richmondrodandgun.com/ http://www.richmondhotshots.com/
Both NCPPRC and Richmond Hot Shots make use of PractiScore for listing matches and allowing signups.
https://practiscore.com
There is a 1k range in Coalinga, down towards Avenal. I don't know much about them other than that they hold a yearly class on wind as it relates to long range shooting.
https://www.coalingarifleclub.com
There is also apparently a private range in Hollister that has steel out to 1100 yards. I have only heard of one mention of it, the webpage linked here. I have not tried contacting them myself but if it exists I'm definitely interested. It's probably the closest, longer range.
http://206.180.232.156/quail-valley-gun-range-ranch
I've heard of Avenal but have not gone. I like the idea of the matches where you walk along the hillsides but being a big boy I'm not so sure I'd do well hauling my rifle and behind up those hills.
For me I've been sitting on the periphery planning on jumping into the game. I've been using the excuse that I don't have good dope for my rifle, but it's time for the excuses to die. I'm interested in the Avenal stuff as well.
Let me know if anyone wants to do a meet up.