Yes. The primary difference is the color of the coating; red for the SFSM created for the law enforcement and military market, and bright green for the Green Lightning, created for hunters. Both marketsLE and military professionals and serious huntersappreciate the performance this slug provides when the application demands exceptional penetration. Recent independent ballistic testing proved that the Special Forces/Green Lightning slug provided superior penetration to all competitive slugs tested by a wide margin. The Brenneke slug penetrated two FBI-spec gelatin blocks to a depth of 34.9 inches. The closest competitor’s penetration was only 29 inches, while all the rest were between 11 and 18 inches. Only the Brenneke slug maintained its basic shape and integrity, while all competitive slugs over-expanded or fragmented, sacrificing penetration. The Brenneke slug expanded to 0.779 inches, while competitive slugs expanded from 0.654 to 2.275 inches (basically a large, fragmented “horses