Speer Grand Slam 270 Caliber 130 Grain JSP Bullets (.277 Diameter)
$21.03
- Capacity-Rounds:
- 50
- Caliber-Gauge:
- 270 Caliber
- Grain:
- 130
- Quantity:
- 50 Per Box
- Bullet Tip Material:
- Lead
- Core Material:
- Lead
- Jacket Material:
- Copper
- Recommended Usage:
- Large Game
- Sectional Density:
- 0.242
- Bullet Diameter:
- 0.277
- Cannelure:
- Yes
- Coefficient:
- 0.345
The Speer Grand Slam 270 caliber 130 grain JSP bullet is a proven rifle round for hunters who demand reliable bullet performance and weight retention on game. Originally introduced in the 1970s, Grand Slam bullets have earned their place in reloaders' ammunition benches across decades of real-world hunting. This .277 diameter offering delivers the controlled expansion and integrity that serious hunters expect when precision handloads matter.
What sets Grand Slam bullets apart is their purposeful design for consistent performance. The tapered and precision-drawn jacket pairs with an internal flute structure fused through Speer's Hot Cor process—a fusion of jacket and core that ensures symmetrical, predictable expansion on impact. This combination gives you the accuracy potential serious reloaders demand and the takedown power that translates to clean, ethical kills.
If you're building loads for 270 Winchester hunting rifles and you value a bullet that shoots straight and performs reliably across a wide range of game, Grand Slam ammunition components deserve a close look. The 130 grain weight is a versatile choice for the 270 platform, and Speer's long track record means you're handloading with bullets trusted by generations of hunters.
Key Features
- Tapered, precision-drawn jacket for controlled expansion
- Internal flutes fused via Hot Cor process for jacket-core integrity
- Symmetrical expansion design for consistent terminal performance
- Excellent weight retention through impact
- Time-proven design with decades of field reliability
Specifications
| Caliber | 270 (.277 Diameter) |
| Bullet Weight | 130 Grains |
| Bullet Type | JSP (Jacketed Soft Point) |
Frequently Asked Questions
What rifles does the 270 caliber 130 grain bullet work in?
These bullets are .277 diameter, making them suitable for 270 Winchester and other .277 caliber rifle platforms. Always verify your specific rifle's chamber and consult load data appropriate to your firearm.
What is the Hot Cor process and why does it matter?
Hot Cor is Speer's method of fusing the bullet jacket and core together during manufacture. This fusion creates a more integral bond between jacket and core, improving weight retention and supporting the consistent, symmetrical expansion the Grand Slam design is known for.
Is 130 grains a good bullet weight for 270 hunting?
At 130 grains, this is a versatile mid-range weight for the 270 Winchester platform and suitable for a broad range of game sizes. Always reference published load data and your rifle's specifications to ensure safe, appropriate performance for your hunting application.
