Rifle projectile · Speer · Grand Slam Rifle · .277 / 270 Cal
Speer .277 150gr Grand Slam Rifle 1608
.277 / 270 Cal · 150 grain · Grand Slam Rifle
Estimates
Performance.
TheSpeer .277 150gr Grand Slam® Rifle 1608is a rifle projectile manufactured bySpeer. With a bullet diameter of 0.277 inches and weight of 150 grains, this projectile is designed for medium large game applications.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Speer |
| Product Line | Grand Slam® Rifle |
| SKU | 1608 |
| Type | Rifle |
| Diameter | 0.277" |
| Weight | 150 grains |
| Ballistic Coefficient (G1) | 0.385 |
| Ballistic Coefficient (G7) | N/A |
| Sectional Density | 0.279 |
Performance Estimates
Based on typical load data for .277 / 270 Cal:
| Metric | Estimate |
|---|---|
| Muzzle Velocity | ~2900 fps |
| Muzzle Energy | ~2800.6 ft-lbs |
| Effective Range | ~700 yards |
Suitable Applications
This projectile is commonly used for: deer, elk, moose, bear.
About the Ballistic Coefficient
The G1 ballistic coefficient of0.385indicates how well this projectile retains velocity in flight. A higher BC means better wind resistance and less drop at distance. This projectile offers good performance at typical hunting distances.
Sectional Density
With a sectional density of0.279, this projectile provides good penetration for medium game.
Suitability
Suitable game.
Compatibility
Compatible cartridges.
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