Sellier & Bellot Precision Rifle Ammo, 308 Winchester, 168Gr, Boat Tail Hollow Point, 20 Round Box SB308G Sellier & Bellot is the oldest continually operational ammunition producer in the world dating back to 1825. Located in Vlasim, Czech Republic, S&B has been producing high-quality ammunition for military, law enforcement, and civilian customers for almost 200 years. The CBC Group purchased S&B in 2009 in an effort to better serve the U.S. market. Significant, consistent investment in the company ensures that S&B remains a leader at producing high-performance ammunition.