Grudgie,
I don't think you can get ammo delivered to CA. anymore. I could be wrong and if so Kentactic will set me straight.
If I lived in a state where you couldn't receive ammo and other firearm related "stuff" I would set up a drop box in another state, e.g. Live in NJ or NY have a drop box in PA. Live in CT or MA, have a drop box in VT, NH or RI.
Many moons ago I lived in LA (Marina del Rey) when there wasn't the restrictions on ammo or firearms that there is today. Anyhow, NV. was about a 4 hour drive away. Today I would gather up my friends and probably have a drop box in NV. Then once a month someone from the group could go to pick up the order (s) waiting for pick up. The secret here, to make it cost effective, you need a couple of people to go in on this together.