rifle · semi-auto | Poland
| Caliber | 7.62×51mm NATO |
|---|---|
| Barrel | 406 mm (16.0 in) |
| Action | semi-auto |
| Manufacturer | FB Radom |
| Country | Poland |
The MSBS Grot .308 S16 is a semi-auto rifle chambered in 7.62×51mm NATO, built by FB Radom in Poland. From its 406 mm (16.0 in) barrel, Magtech FMJ (147 gr FMJ) leaves the muzzle at about 2666 fps (813 m/s), adjusted from the 610 mm test barrel the figure was measured in. Zeroed at 100 m, the bullet drops 142 mm by 200 m with 2110 J (1556 ft-lb) left. At the muzzle that is enough to defeat Drywall, Plate Glass, Pine Wood, Brick and Kevlar NIJ IIIA, and not enough for AR500 Steel.
Computed by the BallisticEngine engine for this barrel length, zeroed at 100 m, 15 °C, sea level, no wind.
| Distance | Drop | Velocity | Energy | Time |
|---|---|---|---|---|
| 100 m | 0 mm | 737 m/s | 2588 J | 0.13 s |
| 200 m | -142 mm | 665 m/s | 2110 J | 0.27 s |
| 300 m | -506 mm | 598 m/s | 1704 J | 0.43 s |
| 500 m | -2129 mm | 477 m/s | 1085 J | 0.81 s |
Against a semi-infinite block of each material, with Magtech FMJ at the muzzle. The verdict compares the depth reached against a realistic barrier thickness.
| Material | Verdict | Depth |
|---|---|---|
| Drywall (½") | ✓ Full penetration | 453 mm |
| Plate Glass (¼") | ✓ Full penetration | 36 mm |
| Pine Wood (1") | ✓ Full penetration | 430 mm |
| Brick (4") | ✓ Full penetration | 237 mm |
| AR500 Steel (⅜") | ✗ Stopped | 7 mm |
| Kevlar NIJ IIIA | ✓ Full penetration | 14 mm |
| Load | Mass | Velocity | Type | BC (G1) |
|---|---|---|---|---|
| Black Hills Black Hills 7.62×51mm NATO 175gr Match OTM | 175 gr | 2600 fps (793 m/s) | BTHP | 0.505 |
| Federal Federal Gold Medal Sierra MatchKing, 7.62x51mm NATO, 175 Grain, Sierra Matchking Boat-Tail Hollow Point, 2600 fps | 175 gr | 2600 fps (793 m/s) | HP | 0.505 |
| Magtech Magtech 7.62×51mm NATO 147gr FMJ | 147 gr | 2800 fps (853 m/s) | FMJ | 0.393 |
| PMP PMP 7.62×51mm NATO 147gr FMJ M80 | 147 gr | 2800 fps (853 m/s) | FMJ | 0.393 |
| Sig Sauer Sig Sauer 7.62×51mm NATO 147gr Marksman FMJ | 147 gr | 2800 fps (853 m/s) | FMJ | 0.393 |
| Winchester Winchester 7.62 x 51mm NATO 147gr Full Metal Jacket USA | 147 gr | 2750 fps (838 m/s) | FMJ | 0.415 |
| Winchester Winchester 7.62 x 51mm NATO 149gr Full Metal Jacket USA | 149 gr | 2790 fps (850 m/s) | FMJ | 0.456 |
7 loads available in 7.62×51mm NATO.