These types are rimmed, rimless, semi-rimmed, rebated rim, and belted. ACP was semi-rimmed and slightly shorter than the rimless 9mm Largo. This makes them particularly suitable for rimless eyeglasses. Along with Trivex and the high-index plastics, polycarbonate is an excellent choice for rimless eyeglasses. He was recognized by his rimless eyeglasses, dome-shaped forehead, bald head, and nervous energy. The .308 Winchester is a smokeless powder rimless bottlenecked rifle cartridge. The .280 British was an experimental rimless bottlenecked intermediate rifle cartridge. Winchester Magnum is a .45 caliber rimless cartridge intended for use in semi-automatic pistols. The initial design patented in 1893 was chambered for a rimless 8mm cartridge. Most modern automatic firearms use rimless cartridges. Norma Magnum is a rimless cartridge. In response, Birmingham Small Arms (BSA) submitted a design chambered for a rimless high-velocity cartridge. These alterations allowed the rimless 9mm cartridge to be used in a revolver design. Remington together were known as the Remington Rimless cartridge series. During C.I.P. ammunition approval headspace is not checked, even on rimless cartridges with taper.