Speer Bullets developed Grand Slam to provide better integrity and retained weight. It has grown to be one of the most respected and successful big game bullets in the world's hunting fields. Grand Slam has superior performance which translates to exceptional accuracy and real knockdown power. A tapered, precision-drawn jacket makes for reliable expansion. Internal fluted at the jacket opening mean symmetrical and consistent expansion.
| FireArm | No |
| Bullet Tip Material | Lead |
| Quantity | 50 Per Box |
| Bullet Diameter | .277 |
| Weight | 150 gr |
| Bullet Type | Soft Point |
| Bullet Caliber | 270 Caliber |
| Sectional Density | .279 |
| Recommended Usage | Large Game |
| Jacket Material | Copper |
| Core Material | Lead |
| Cannelure | Yes |
| OAL | 1.165" |
| Coefficient | .378 |