Question: What was a cartridge developed for the Browning .50 caliber machine gun in the late 1910, was banned in California which led to the adoption of a French rifle cartridge developed by Eric Danis? 
Sentence (from ".510 DTC EUROP"): The .510 DTC EUROP is a French rifle cartridge developed by Eric Danis in order to comply with firearms legislation in Europe which regulates .50 BMG rifles.
Relevant evidence: No