Leather that is not buffed is called âfull grainâ because the natural grain retains its markings and characteristics. BYCAST â A split leather with a polyurethane protective coating. Like splits, bycast leather is inferior as it lacks the natural characteristics, elasticity and durability of top grain leather.
Marine Corps Gunnery Sergeant. Gunnery Sergeant Marine Corps Military Ranks. A Gunnery Sergeant in the United States Marine Corps is a specialized non-commissioned officer who manages firepower and logistics for a company-sized unit of Marines. The rank of Gunnery Sergeant is unique to the Marine Corps, and was introduced in the 19th century.
An old adage in the U.S. Army and the U.S. Marine Corps is that sergeants actually run everything. In both the Army and the Marines, a sergeant major is the most senior sergeant and holds the enlisted paygrade of E9. Sergeants major are typically the senior enlisted advisors to the officers commanding their units. In most cases, a sergeant major is also responsible for much of the direction and performance of the enlisted personnel within his military unit.