Want to echo those who have said positive things about the SLO area. I'm down in San Diego - not that bad, in general, and not without ranges or stores or public lands for shooting - but central coast is my favorite part of the state. Beautiful, still quite uncrowded, and great if you love wine, the ocean, rolling hills, quiet, and empty roads.
And yes, I am probably the only person in SD who not infrequently does wine-tasting and shooting on the same Saturday (and yes, again, the shooting BEFORE the tasting). Having wine and guns as your two main non-athletic hobbies makes for amusing contrasts.
Reloading is, as noted by some, only a matter of (mysterious? ever enforced?) local fire department storage restrictions on powders and primers. Otherwise, I have no issues - online, look for deals, buy from locals via Calguns or Craigslist esp. for primers and bullets (no bar on ammo or component sales there). I think I get my components at decent prices and there are no CA-specific issues for most (the poster above was correct about LA City and SF - ? - having restrictions on mail-order ammo shipments).
Actually the only two SoCal component brick-and-mortar sources rumored to be decent for component selection and price are in the LA area - Angeles range store (mentioned above) and Phillips Wholesale, in Covina (
http://www.phillipswholesale.net/home.html). Haven't been to either. Ammo Bros. (two locations) might also have reloading potential, not sure.
The CalGuns Foundation, NRA, Second Amendment Foundation et al are having some successes having CA's ridiculous gun laws overturned in the courts. But it's really like some sort of Marx Bros. movie - the "legislature" keeps churning out dozens of absurd, unconstitutional, frivolous laws like a machine. Most serious, intelligent Americans wouldn't believe how extravagantly the state is mismanaged. Your best bet to avoid the self-inflicted wounds of CA's sad public life is to stick to more rural and less ruined jurisdictions like SLO County or Ventura County.