$21.99
5 in stock
Online inventory may differ from in-store availability.
Quick turnaround so you get your gear sooner.
Trusted checkout with industry-standard protection.
Keeping Traditions Alive Since 1953
Secure Transactions provided with 
If you're putting together hunting loads that need to handle the toughest situations, the Grand Slam has earned its reputation for good reason. Speer designed these projectiles around one core principle: integrity when it matters most. The 150-grain weight in .270 caliber gives you solid sectional density for penetrating bone and muscle while maintaining enough velocity for a flatter trajectory than lighter offerings.
The Hot-Cor construction uses a molten lead core poured directly into the jacket rather than swaging it around a pre-formed core. This process eliminates voids and air pockets that can cause oxide formation and jacket separation during impact. Add in the tapered jacket design with a thicker shank section and you've got a bullet built to hold together when the game demands it. The internal flutes at the tip allow consistent expansion across a wide velocity range, so whether you're shooting at close range or stretching it out, you get reliable mushrooming.
These bullets have been around since the 1970s and spent decades building a following in hunting camps across North America. The combination of weight retention and controlled expansion makes them particularly suited for elk and larger deer at typical hunting distances. The long, ogival nose profile helps keep your trajectory flatter than traditional flat-base designs while the cannelure gives you a dependable crimping groove for secure seating in your cases. You're looking at roughly 80 to 85 percent weight retention on impact, with the bullet holding its shape for deep, predictable penetration.
Each box contains 50 unprimed projectiles ready for your reloading operation. These are components only, not finished ammunition. The 0.277-inch diameter and 150-grain weight fit standard .270 Winchester specifications and work well with established load data from quality reloading manuals.
Grand Slams are built for extreme toughness and weight retention rather than high ballistic coefficients. The Hot-Cor construction pours the lead core directly into the jacket, eliminating voids and creating a stronger core-jacket bond than standard swaged designs. This trades some BC for superior integrity and penetration, making them excellent for tough game and demanding hunting situations where controlled performance matters more than long-range aerodynamics.
These are dimensioned for standard .270 Winchester specifications. While the bullet itself will chamber in other .270 variants like the .270 WSM or .270 Norma, you'll need to consult load data specific to your cartridge and rifle combination. Always work up loads carefully with a quality reloading manual before running full power loads.
The 150-grain Grand Slam works well on elk-sized game and larger deer at typical hunting ranges. Its weight retention and sectional density make it suitable for scenarios requiring deep penetration through heavy bone. For smaller game, many hunters prefer lighter bullets, though these will certainly work if you're accurate with shot placement.
Always consult published reloading data from established sources like Speer's official reloading manuals or other respected reloading guides. Load data varies based on your specific rifle, brass, powder, and primer combination. Start at minimum loads and work up carefully, watching for pressure signs, before reaching published maximums.
| UPC | 076683016089 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 1608 |
| Bullet Caliber | .270 Caliber |
| Quantity | 50 Per Box |
| Shipping Weight | 1.1875 |
You must be logged in to post a review.
Reviews
There are no reviews yet.