5.56×45 Posted on August 5, 2013 by ammobuyersguide 5.56×45 5.56 x 45 mm Blank M200 5.56 x 45 mm Blank M200 0.224 inches (5.7 mm) 3.95 5.18 g 930 772 m/s 1,700 1,830 J ArmaLite 5.56 x 45 mm Dummy M199 5.56 x 45 mm Dummy M199 0.224 inches (5.7 mm) ArmaLite contacted Remington 1963 5.56 x 45 mm M855 5.56 x 45 mm M855 0.224 inches (5.7 mm) 62 grain 2,700 ft/s (820 m/s) ArmaLite contacted Remington 1963 5.56 x 45 mm M856 Tracer 5.56 x 45 mm M856 Tracer 0.224 inches (5.7 mm) 63.7 gr 2,700 ft/s (820 m/s) ArmaLite contacted Remington 1963 5.56 x 45 mm M995 AP 5.56 x 45 mm M995 AP 0.224 inches (5.7 mm) 1992 5.56 x 45 mm NATO 5.56 x 45 mm NATO 0.224 inches (5.7 mm) 3.95 5.18 g 930 772 m/s 1,700 1,830 J ArmaLite contacted 5.56 x 45 mm SS109 5.56 x 45 mm SS109 0.224 inches (5.7 mm) 62 grain 2,700 ft/s (820 m/s) ArmaLite contacted Remington 1963
