[TheDon]

This law ends mail/internet orders, as well as other non-face-to-face ammo sales.

The US Congress controls interstate commerce last time I checked, so ordering ammo from out of the state can't be legally prohibited by a CA law.

[DBrow]

if CA law requires a CA license to sell ammo, then they can ban non-CA vendors who don’t have a license. Also, the CA law requires face-to-face transactions with, I think, fingerprints and signatures.

I don’t expect the Ninth to overturn this, and it’ll be decades getting to SCOTUS.