Badlands NAS3 77gr SMK

Adds Badlands NAS3 77gr Sierra MatchKing ammunition and 20 separate 30-round magazines to the US arsenal. Requires only Arma Reforger. Existing ammunition and magazines remain available. Magazine types: STANAG, an original TMAG-inspired translucent model, and an original opaque polymer model in black, tan and olive drab. Each type offers non-tracer, every-fifth M856, final-five M856, and every-fifth-plus-final-five M856 loads. The three mixed patterns contain 6, 5 and 10 tracers respectively. M856 retains its separate base-game ballistics; the Sierra MatchKing remains non-tracer. Reference: 77 grains, .224-inch projectile, 2950 fps / 899.16 m/s measured by Badlands from an 18-inch Mk12 setup. Sierra G1 BC .372/.362/.343 by velocity band. Native constant drag is fitted against a G1 reference through 600m, with a separate AI ballistic table. Other barrel lengths and weapon speed coefficients change muzzle velocity. The magazine meshes are original visual approximations, not official Magpul assets or exact replicas. TMAG visible cartridges and spring are static cosmetic geometry and do not decrease as rounds are fired. No manufacturer endorsement is implied. Penetration, fragmentation, dispersion and cartridge weight inherit game approximations. NAS3 case appearance and full real-world terminal behavior are not reproduced. Local engine checks cover all magazine mappings and complete mixed-magazine firing with STANAG, TMAG-style and polymer magazines. Multiplayer has not been independently tested. Sources: badlandsmunitionsco.com/product/556-nas3-77gr-sierra-match-king/ ; sierrabullets.com/wp-content/uploads/2019/10/BC-chart-rifle.pdf ; magpul.com/tmag-30-ar-m4-gen-m3.html