Speer Bullets .38 Caliber (.357 Diameter) 158 Grain JSP - Box of 100

Speer Bullets .38 caliber (.357 diameter) 158 grain JSP rounds are a trusted choice for handloaders looking for consistent, reliable ammunition components. The 158 grain weight lands in the middle of the performance spectrum for .38 Special and .357 Magnum reloading, offering a balanced blend of velocity and energy suitable for both target work and field use. JSP (jacketed soft point) construction delivers controlled expansion when needed, making these bullets versatile enough for hunting, personal defense, and general shooting applications.

Speer has built its reputation on manufacturing precision and quality control—each box of 100 bullets represents careful attention to dimensional consistency and material selection. Reloaders who've relied on Speer components over the years do so because the bullets shoot true and perform predictably across different loads and firearms. Whether you're a competitive shooter fine-tuning loads, a hunter preparing for the season, or simply someone who takes pride in hand-assembled ammunition, these .38 caliber bullets give you the foundation for ammunition you trust.

The .357 diameter specification fits standard .38 Special and .357 Magnum rifle chambers. At 158 grains, this is a proven weight class with published load data in all major reloading manuals, so you won't have to hunt for safe starting and maximum loads. Buy in bulk—a box of 100 makes it easy to keep your bench supplied without breaking the bank on components.

Key Features

• 158 grain weight—a versatile middle ground for .38 and .357 handgun loads
• JSP (jacketed soft point) bullet design for controlled expansion
• Box of 100 for convenient bulk reloading
• .357 diameter specification for standard .38 Special and .357 Magnum chambers
• Manufactured to Speer's consistent quality standards

Specifications

Frequently Asked Questions

What calibers can I use these .357 diameter 158 grain bullets in?

These bullets are designed for .38 Special and .357 Magnum chambers. The .357 diameter specification is standard for both cartridges. Always verify compatibility with your specific firearm and consult published reloading data for your chosen cartridge.

Are these bullets suitable for hunting?

Yes. The 158 grain JSP design is traditional for handgun hunting and personal defense applications. Soft point construction provides controlled expansion, making these bullets practical for field use when loaded to appropriate velocities for your intended game and distance.

Can I find reloading data for 158 grain .38 caliber JSP bullets?

Yes. The 158 grain weight is well-established in both .38 Special and .357 Magnum, and all major reloading manuals include load data for this bullet weight. Always consult your specific manual and follow safe reloading practices.

How many bullets are in each box?

Each box contains 100 bullets, giving you a convenient quantity for single-batch reloading projects or restocking your reloading bench.