A high power shooting friend suggested that I have a rifle chambered in 6mm HLS due to it's simplicity of forming brass and that dies can easily be made by shortening 6mm Remington dies. Could anyone shed some light on this cartridge? I see it pictured in the 'Competition Cartridges' article by Cheechako, but there is nothing in the narrative related to the HLS specifically. Some history and information from past users would be appreciated.