.50 Caliber BMG Regulation Act of 2004

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The .50 Caliber BMG Regulation Act of 2004 is a law in the state of California that effectively banned all .50 BMG-caliber rifles from being sold in the state. The law took effect on January 1, 2005.^[1]

1 Background
- 1.1 Definitions
- 1.2 Exceptions
2 Controversy
3 Alternative cartridges
4 See also
5 References
6 External links

[edit] Background

The legislature of California declared that "proliferation and use" of .50 BMG rifles posed a terrorist threat, as well as a threat to the "health, safe, and security of all residents" of California.^[1] The act required existing .50 BMG rifles to be registered with the state and prohibited the sale of any rifle after the ban went into effect. To quote the state web site, the act "regulates the .50 BMG rifles in essentially the same manner as assault weapons." ^[2] The law specifically allowed a registration period of one year, now passed, to register any such firearms, after which unregistered weapons would become illegal firearms.

[edit] Definitions

.50 BMG rifles are defined in the act as "a centerfire rifle that can fire a .50 BMG cartridge and is not already an assault weapon."^[2]

“.50 BMG cartridge” is defined as a cartridge that is designed and intended to be fired from a centerfire rifle and that meets all of the following criteria: (1) It has an overall length of 5.54 inches from the base to the tip of the bullet. (2) The bullet diameter for the cartridge is from .510 to, and including, .511 inch. (3) The case base diameter for the cartridge is from .800 inch to, and including, .804 inch. (4) The cartridge case length is 3.91 inches. (PC § 12278.) ^[3]

[edit] Exceptions

The law does not apply to the law enforcement officers with permission from their employing agencies.^[3]

Exceptions are granted to rifles classified as antiques or Curio and Relics as defined by the BATFE.^[3]

Out-of-state owners may bring .50 BMG rifles into the state for shooting competitions.^[3]

Limited exceptions are granted for exhibitions, displays, and education projects sponsored by law enforcement or government agencies.^[3]

It is still possible to legally purchase a .50 BMG firearm in the state of California. The law specifically prohibits rifles, not all firearms. Firearms such as a semi-automatic M2HB (the semi-auto version of the M2 Browning Machinegun) are not rifles since they are not designed to be fired from the shoulder. Since it is not a rifle, it is not subject to the restrictions of the .50 Caliber BMG Regulation Act of 2004.^{[citation needed]}

[edit] Controversy

As a result of the ban, the Barrett Firearms Company announced it would no longer sell to or service any of its rifles in the possession of any California government agency.^[4]

Despite the legislature's claim of a terrorist threat, there have to date (2008) been no terrorist attacks involving a .50 BMG. In fact, the .50 BMG, despite having been taken from citizens owning them, has not been used to harm or kill anyone in California.^[5]^[6]^[7]

[edit] Alternative cartridges

The .510 DTC Europ has since been introduced to take advantage of the highly specific language used in the act. The round provides almost identical ballistics and performance, but cannot be used in weapons chambered for .50 BMG.

Barrett has since produced the .416 Barrett, a necked-down .50 BMG case using a .416 caliber bullet, which is not subject to the .50 BMG Act because of the smaller caliber. It has the benefit of having a flatter trajectory than the .50 BMG.