The .510 DTC EUROP is a French design developed by Eric Danis, owner of Dan Tec France in 2000 in order to comply with firearms legislation of .50 BMG rifles in Europe. In response to the .50 Caliber BMG Regulation Act of 2004, which banned future sales of .50 BMG shoulder-fired rifles in California, long-range shooters in that state have begun to adopt this cartridge as a manner of following the new legislation. It has almost the same ballistics as the 50 BMG but the two cartridges are not interchangeable.