rifle · semi-auto | United States
| Caliber | .300 Blackout |
|---|---|
| Barrel | 229 mm (9.0 in) |
| Weight | 2676 g (94.4 oz, manufacturer figure) |
| Capacity | 30 rounds |
| Action | semi-auto |
| Manufacturer | SIG |
| Country | United States |
The MCX Spear LT .300BLK is a semi-auto rifle chambered in .300 Blackout, built by SIG in United States. From its 229 mm (9.0 in) barrel, Federal American Eagle Rifle, 300 Blackout, Full Metal Jacket Boat-Tail (150 gr FMJ) leaves the muzzle at about 1773 fps (541 m/s), adjusted from the 406 mm test barrel the figure was measured in. Zeroed at 50 m, the bullet drops 57 mm by 100 m with 1080 J (797 ft-lb) left. At the muzzle that is enough to defeat Drywall, Plate Glass, Pine Wood and Brick, and not enough for AR500 Steel and Kevlar NIJ IIIA. It feeds from a 30-round magazine.
Computed by the BallisticEngine engine for this barrel length, zeroed at 50 m, 15 °C, sea level, no wind.
| Distance | Drop | Velocity | Energy | Time |
|---|---|---|---|---|
| 50 m | 0 mm | 505 m/s | 1239 J | 0.10 s |
| 100 m | -57 mm | 472 m/s | 1080 J | 0.20 s |
| 200 m | -517 mm | 412 m/s | 823 J | 0.43 s |
| 300 m | -1559 mm | 363 m/s | 640 J | 0.69 s |
Against a semi-infinite block of each material, with Federal American Eagle Rifle, 300 Blackout, Full Metal Jacket Boat-Tail at the muzzle. The verdict compares the depth reached against a realistic barrier thickness.
| Material | Verdict | Depth |
|---|---|---|
| Drywall (½") | ✓ Full penetration | 396 mm |
| Plate Glass (¼") | ✓ Full penetration | 32 mm |
| Pine Wood (1") | ✓ Full penetration | 390 mm |
| Brick (4") | ✓ Full penetration | 190 mm |
| AR500 Steel (⅜") | ✗ Stopped | 1 mm |
| Kevlar NIJ IIIA | ✗ Stopped | 7 mm |
| Load | Mass | Velocity | Type | BC (G1) |
|---|---|---|---|---|
| Aguila Aguila .300 Blackout 125gr FMJ | 125 gr | 2215 fps (675 m/s) | FMJ | 0.260 |
| Aguila Aguila .300 Blackout 220gr FMJ Subsonic | 220 gr | 1000 fps (305 m/s) | FMJ | 0.345 |
| Black Hills Black Hills .300 Blackout 110gr TSX | 110 gr | 2350 fps (716 m/s) | SP | 0.290 |
| Black Hills Black Hills .300 Blackout 125gr OTM | 125 gr | 2250 fps (686 m/s) | BTHP | 0.300 |
| Black Hills Black Hills .300 Blackout 220gr OTM Subsonic | 220 gr | 1000 fps (305 m/s) | BTHP | 0.340 |
| Federal Federal American Eagle Rifle Suppressor, 300 Blackout, 220 Grain, Open Tip Match, 1000 fps | 220 gr | 1000 fps (305 m/s) | BTHP | 0.650 |
| Federal Federal American Eagle Rifle, 300 Blackout, 150 Grain, Full Metal Jacket Boat-Tail, 1900 fps | 150 gr | 1900 fps (579 m/s) | FMJ | 0.330 |
| Federal Federal Federal Subsonic, 300 Blackout, 190 Grain, Fusion Tipped, 1000 fps | 190 gr | 1000 fps (305 m/s) | SP | 0.494 |
| Federal Federal Fusion MSR, 300 Blackout, 150 Grain, Fusion Soft Point, 1900 fps | 150 gr | 1900 fps (579 m/s) | SP | 0.330 |
| Federal Federal Power-Shok Copper Rifle, 300 Blackout, 120 Grain, Copper HP, 2100 fps | 120 gr | 2100 fps (640 m/s) | HP | 0.251 |
| Federal Federal Power-Shok Rifle, 300 Blackout, 150 Grain, Soft Point, 1900 fps | 150 gr | 1900 fps (579 m/s) | SP | 0.330 |
| Fiocchi Fiocchi 300 Blackout 125gr Hornady® SST® Polymer Boat-Tail | 125 gr | 2200 fps (671 m/s) | SP | 0.305 |
| Fiocchi Fiocchi 300 Blackout 150gr Full Metal Jacket Boat-Tail | 150 gr | 1850 fps (564 m/s) | FMJ | 0.349 |
| Fiocchi Fiocchi 300 Blackout 220gr FMJ | 220 gr | 1075 fps (328 m/s) | FMJ | 0.180 |
| Fiocchi Fiocchi 300 Blackout 220gr Sierra® MatchKing® HP Boat-Tail | 220 gr | 1020 fps (311 m/s) | BTHP | 0.608 |
| Fort Scott Fort Scott .300 Blackout 115gr TUI | 115 gr | 2250 fps (686 m/s) | HP | 0.200 |
| Fort Scott Fort Scott .300 Blackout 190gr TUI Subsonic | 190 gr | 1050 fps (320 m/s) | HP | 0.300 |
| G2 Research G2 Research .300 Blackout 110gr RIP HP | 110 gr | 2010 fps (613 m/s) | HP | 0.170 |
| GECO GECO .300 Blackout 124gr FMJ | 124 gr | 2165 fps (660 m/s) | FMJ | 0.255 |
| Hornady Frontier 300 Blackout 208gr FMJ Subsonic | 208 gr | 1024 fps (312 m/s) | FMJ | — |
52 loads available in .300 Blackout; 20 shown.