Sierra Sports Master 45 Cal 185 Grain JHP Bullets - Box of 100

The Sierra SportsMaster 45 Cal 185 Grain JHP Bullets are purpose-built handgun projectiles designed to deliver consistent performance and reliable expansion in the 45 ACP—and they work equally well in 45 Auto Rim and 45 Colt platforms. Each box contains 100 bullets, giving reloaders a practical quantity for developing loads, practice sessions, or serious duty ammunition. With a proven hollow point design backed by Sierra's Power Jacket technology, these bullets balance penetration and expansion characteristics that work across a range of velocities, making them a versatile option whether you're building defensive ammo or hunting load.

At 185 grains and 0.4515 inches in diameter, the SportsMaster profile offers a sectional density of .130, which contributes to stable flight and consistent ballistic performance. The bullet's ballistic coefficient shifts with velocity—.100 at 1200 fps and above, .110 between 1200 and 900 fps, and .135 at velocities below 900 fps—giving you the flexibility to load for everything from standard defensive velocities to hunting speeds. This flexibility is one reason the 185-grain JHP remains a favorite among 45 ACP handloaders who refuse to compromise on terminal performance.

Whether you're handloading for personal protection, sport shooting, or hunting applications up to medium-sized game, Sierra's SportsMaster bullets are engineered for reliability and repeatability. The hollow point geometry and jacket design are the same proven architecture Sierra built into their 9mm and 10mm JHP offerings, so you're working with a bullet profile that has earned trust in the field. Note: 45 Colt shooters should verify case sizing, as some vintage revolvers were chambered for .454-inch diameter bullets.

Key Features

• 185-grain hollow point design optimized for 45 ACP, 45 Auto Rim, and 45 Colt
• Sierra Power Jacket construction for consistent expansion and penetration
• Sectional density of .130 for stable flight and energy delivery
• Velocity-adaptive ballistic coefficient (.100–.135 depending on speed)
• 100 bullets per box—practical quantity for reloaders and shooters
• Suitable for self-defense, hunting, and sport shooting applications

Specifications

Frequently Asked Questions

Can I use these 45 ACP bullets in a 45 Colt revolver?

Yes, the SportsMaster 185-grain JHP is listed as suitable for 45 Colt, but with an important caveat: some vintage 45 Colt revolvers were manufactured for .454-inch diameter bullets, which differ slightly from the 0.4515-inch diameter of these Sierra bullets. During reloading, you may need to pay special attention to case sizing to ensure proper fit. Verify your revolver's specifications before loading.

What's the difference between the ballistic coefficients listed?

Sierra publishes three ballistic coefficient values for this bullet because its coefficient changes depending on velocity. You get .100 at high velocity (1200 fps and above), .110 in the mid-range (1200–900 fps), and .135 at subsonic velocities (below 900 fps). This accounts for the bullet's performance across different load profiles—defensive rounds, hunting loads, and reduced-velocity practice ammo all perform differently in flight.

Is this bullet suitable for hunting?

Yes. When loaded to maximum safe velocities, the SportsMaster 185-grain JHP is effective for hunting varmints and medium-sized game. The hollow point design and Power Jacket provide controlled expansion necessary for ethical, humane performance on animals. Always follow local hunting regulations and choose loads appropriate to your game.

How many bullets are in a box?

Each box contains 100 bullets, which is a practical reloading quantity for developing loads, practice sessions, or building a quantity of finished ammunition.