rifle · bolt-action | United States
| Caliber | .257 Weatherby Magnum |
|---|---|
| Barrel | 660 mm (26.0 in) |
| Weight | 3629 g (128.0 oz, manufacturer figure) |
| Capacity | 3 rounds |
| Action | bolt-action |
| Manufacturer | Weatherby |
| Country | United States |
The Weatherby Mark V .257 Wby is a bolt-action rifle chambered in .257 Weatherby Magnum, built by Weatherby in United States. From its 660 mm (26.0 in) barrel, Hornady 257 Wby Magnum ELD-X® Precision Hunter® (110 gr SP) leaves the muzzle at about 3240 fps (988 m/s). Zeroed at 100 m, the bullet drops 78 mm by 200 m with 2548 J (1879 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. It feeds from a 3-round magazine.
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 | 914 m/s | 2980 J | 0.11 s |
| 200 m | -78 mm | 846 m/s | 2548 J | 0.22 s |
| 300 m | -293 mm | 780 m/s | 2166 J | 0.34 s |
| 500 m | -1240 mm | 657 m/s | 1540 J | 0.62 s |
Against a semi-infinite block of each material, with Hornady 257 Wby Magnum ELD-X® Precision Hunter® at the muzzle. The verdict compares the depth reached against a realistic barrier thickness.
| Material | Verdict | Depth |
|---|---|---|
| Drywall (½") | ✓ Full penetration | 420 mm |
| Plate Glass (¼") | ✓ Full penetration | 36 mm |
| Pine Wood (1") | ✓ Full penetration | 404 mm |
| Brick (4") | ✓ Full penetration | 250 mm |
| AR500 Steel (⅜") | ✗ Stopped | 5 mm |
| Kevlar NIJ IIIA | ✓ Full penetration | 22 mm |
| Load | Mass | Velocity | Type | BC (G1) |
|---|---|---|---|---|
| Hornady Hornady 257 Wby Mag 90 gr. CX® Outfitter® | 90 gr | 3625 fps (1105 m/s) | SP | 0.273 |
| Hornady Hornady 257 Wby Magnum 110 gr ELD-X® Precision Hunter® | 110 gr | 3240 fps (988 m/s) | SP | 0.465 |
| Weatherby Weatherby .257 Weatherby Magnum 100gr Barnes TTSX | 100 gr | 3602 fps (1098 m/s) | SP | 0.355 |
| Weatherby Weatherby .257 Weatherby Magnum 100gr SP | 100 gr | 3602 fps (1098 m/s) | SP | 0.369 |
| Weatherby Weatherby .257 Weatherby Magnum 117gr Hornady SP | 117 gr | 3402 fps (1037 m/s) | SP | 0.410 |
| Weatherby Weatherby .257 Weatherby Magnum 120gr Nosler AccuBond | 120 gr | 3305 fps (1007 m/s) | SP | 0.433 |
6 loads available in .257 Weatherby Magnum.