Merc is technically right. The key words in his first post:
Originally Posted by Merc1138
You can use 50 round capacity magazines with rimfire rifles in CA, there is no law preventing that. Getting a magazine with a capacity over 10 rounds is a different issue.
This is why its easier just post the actual laws:
12020. (a) Any person in this state who does any of the following is punishable by imprisonment in a county jail not exceeding one year or in the state prison:
(2) Commencing January 1, 2000, manufactures or causes to be manufactured, imports into the state, keeps for sale, or offers or exposes for sale, or who gives, or lends, any large-capacity magazine.
(25) As used in this section, "large-capacity magazine" means any ammunition feeding device with the capacity to accept more than 10 rounds, but shall not be construed to include any of the following:
(A) A feeding device that has been permanently altered so that it cannot accommodate more than 10 rounds.
(B) A .22 caliber tube ammunition feeding device.
(C) A tubular magazine that is contained in a lever-action firearm.
Use and Possession are not listed under (2). It's all about how and when you acquire it in CA.
Also note the exemption under (B) ".22 caliber tube ammunition feeding device"
This is often misrepresented by people claim rimfire is exempt, or state "Rimfire tube magazines are exempt" Note that the PC lacks the term rimfire it states .22 caliber.
12276.1. (a) Notwithstanding Section 12276, "assault weapon" shall also mean any of the following:
(1) A semiautomatic, centerfire rifle that has the capacity to accept a detachable magazine and any one of the following:
(A) A pistol grip that protrudes conspicuously beneath the action of the weapon.
(B) A thumbhole stock.
(C) A folding or telescoping stock.
(D) A grenade launcher or flare launcher.
(E) A flash suppressor.
(F) A forward pistol grip.
(2) A semiautomatic, centerfire rifle that has a fixed magazine with the capacity to accept more than 10 rounds.
(3) A semiautomatic, centerfire rifle that has an overall length of less than 30 inches.
(4) A semiautomatic pistol that has the capacity to accept a detachable magazine and any one of the following:
(A) A threaded barrel, capable of accepting a flash suppressor, forward handgrip, or silencer.
(B) A second handgrip.
(C) A shroud that is attached to, or partially or completely encircles, the barrel that allows the bearer to fire the weapon without burning his or her hand, except a slide that encloses the barrel.
(D) The capacity to accept a detachable magazine at some location outside of the pistol grip.
(5) A semiautomatic pistol with a fixed magazine that has the capacity to accept more than 10 rounds.
12020 The PC that deals with "Large Capacity Magazines" (Like Merc said) is not Part of the AWB and is a separate issue.
Under 12276.1 Rimfire Rifles are not mentioned and therefore are not subject to "evil features"
Nor are they limited to 10 rounds by definition like semiautomatic centerfire rifles with a fixed magazine.
Nor are they mentioned under the need to be 30 OAL. So therefore they default to Federal barrel and OAL length limits: 16" and 26".
It is important to note though that under Semiautomatic Pistols it does not say centerfire like the rifle sections do, so it applies to semiautomatic rimfire pistols as well. (Ruger charger for example)