Speer Grand Slam 7mm (.284) 160 Grain JSP Bullets - 284 Caliber Precision Ammunition

Speer Grand Slam 7mm (.284) 160 grain rifle bullets have been the reloader's choice for serious hunting since the 1970s — and for good reason. These jacketed soft points combine proven stopping power with the kind of weight retention hunters depend on when the moment counts. Whether you're handloading for elk, deer, or long-range hunting situations where reliability isn't optional, the Grand Slam delivers the performance that's made it a standard in reloading rooms across the country.

What sets the Grand Slam apart is its construction. The tapered, precision-drawn jacket is fused to the core through Speer's Hot Cor process, creating a bond strong enough to hold together under impact stress. Internal flutes machined into the jacket promote controlled, symmetrical expansion — you get consistent results shot after shot, which matters when you're relying on handloads in the field. That jacket-and-core fusion design isn't flashy, but it's the kind of engineering that keeps hunters coming back.

At 160 grains, this weight sits in the sweet spot for 7mm cartridges used in hunting applications, offering the ballistic characteristics and sectional density serious reloaders expect. If you're developing loads for a 7mm Rem Mag, 7mm-08, or similar hunting rounds, these bullets give you the platform to work with — accuracy and terminal performance built in.

Key Features

• 160 grain weight optimized for 7mm hunting cartridges
• Hot Cor jacket-and-core fusion for reliable weight retention
• Internal flutes promote controlled, symmetrical expansion
• Tapered, precision-drawn jacket design
• Proven performance track record since the 1970s
• Jacketed soft point (JSP) construction

Specifications

Frequently Asked Questions

What 7mm cartridges are these bullets suitable for?

These 160 grain .284 bullets are designed for 7mm hunting cartridges. Speer Grand Slam bullets are commonly used in rounds like the 7mm Rem Mag and 7mm-08, but compatibility depends on your specific rifle and load data. Always consult current reloading manuals and work with established load data for your exact cartridge.

What's the Hot Cor process and why does it matter?

Hot Cor is Speer's method of fusing the jacket to the core while the core is still hot from the forming process. This creates a permanent bond between jacket and core, resulting in better weight retention on impact — which translates to more consistent, reliable performance in the field.

Are these bullets intended for hunting, target shooting, or both?

Grand Slam bullets are purpose-built for hunting applications where shot placement and terminal performance are critical. The controlled expansion and weight retention make them well-suited to hunting situations; reloaders who specialize in hunting loads are their primary audience.

What does the 160 grain weight mean for ballistics?

At 160 grains, these bullets offer sectional density and ballistic properties appropriate for 7mm hunting cartridges. Heavier bullets generally retain velocity better at distance and deliver more momentum, but your actual ballistic performance depends on your specific cartridge, powder, and load data.