Nope, not since Jan 1, 2016. And you can't buy it online and ship it to your house. It has to go to a dealer (who will charge you a fee).Is it really? You cant transport ammo across the state line?
CAN I DRIVE IN AMMUNITION I BOUGHT OUT OF STATE?
No. On Jan. 1, it will be illegal to import into California ammunition purchased in another state. The legislature passed a bill in 2016 that would have allowed hunters to bring in up to 50 rounds from out of state without taking it to a dealer, but Proposition 63 overrode that, according to the Department of Justice.