Just an FYI - the July '08 thing has to do specifically with gun sales, not ammo. The CA Dept. of Justice (how's that for an oxymoron?) requires gun sales originating from out of state to be held in limbo until an ID number is generated by the state certifying that the buyer (in California) is legally allowed to purchase the gun. I don't honestly remember if this is for handguns only or all guns, but either way, it doesn't apply to ammo.
The only "banned" ammo in California, as far as I'm aware, is:
1. Tracer Ammo (except shotgun tracers, apparently?)
2. "Bullets" which contain explosive material
3. Any projectile that contains "any explosive, incendiary material, or any other chemical substance including, but not limited to, that commonly known as tracer or incendiary ammunition" (so, since copper and lead are chemical substances, does that mean all ammunition is illegal in California?)
4. AP handgun ammo
Also, it would be illegal to sell ammo to:
1. Any minor (under 18 in CA)
2. Any person prohibited from possessing firearms
3. If handgun ammo, to anyone under the age of 21
3a. If rifle/pistol ammo, and the person is under 21, you can sell to them as long as you have a reasonable belief that they will use it in a long gun (e.g. an email saying that they need the .22LR for their Ruger 1022)
Source:
http://ag.ca.gov/firearms/dwcl/dwc.pdf
