.257 | 100gr | Swift Scirocco
by Swift
The Swift Scirocco II is a polymer-tipped, bonded hunting bullet renowned for its high ballistic coefficient and devastating terminal performance. The proprietary Scirocco bonding process molecularly fuses the tapered jacket to the lead core, ensuring 70%+ weight retention through heavy bone and muscle. Its secant ogive and 15-degree boat-tail deliver exceptional aerodynamics and accuracy at extended ranges. The progressive thickness jacket provides controlled expansion across a wide velocity range. The Scirocco II is particularly effective on large, tough game like elk and moose, combining the accuracy of a target bullet with the terminal performance of a premium hunting bullet.
Specifications
Weight
100 gr (6.48 g)
Diameter
0.257″ (6.53 mm)
Sectional Density
0.216
BC G1
0.429
Type
Scirocco
Min. Twist
1:9.5
Related Load Recipes
Load recipes using .257 | 100gr | Scirocco are available in the following cartridges:
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Community Load Data for .257 | 100gr | Scirocco
Loads for .257 | 100gr | Scirocco from our community:
2 loads
| cartridge | Powder | Barrel (in) | Charge (gr) | OAL (in) | Max. Pressure (psi) | Muzzle Velocity (fps) |
|---|---|---|---|---|---|---|
| .25 Creedmoor | IMR 4350 | 24.0 | 45.0 | 2.825 | 54476 (88%) | 3045 |
| .25 Creedmoor | IMR 4350 | 20.0 | 45.0 | 2.825 | 54476 (88%) | 2913 |