A US federal judge has blocked a California law requiring background checks to buy ammunition, ruling it contravenes the right to bear arms granted under the Second Amendment of The Constitution.

“The experiment has been tried. The casualties have been counted,” San Diego District Judge Roger Benitez wrote in a 120-page order issued on Thursday.

“California’s new ammunition background check law misfires and the Second Amendment rights of California citizens have been gravely injured.”

Calling the law “onerous and convoluted”, the judge issued a preliminary injunction blocking its implementation.

According to the order, the plaintiffs are a group of

Read more: US: Judge rules in favor of gun rights in California