Hornady 8740 Unprimed 357 Mag Handgun Brass Cases - 100 Count

If you're building reliable, accurate handloads for your .357 Magnum revolver or pistol, the Hornady 8740 unprimed brass cases give you a solid foundation. This 100-count pack of virgin .357 Magnum brass is sized and dimensioned to Hornady's tight manufacturing tolerances, meaning each case is consistent with the next—a critical detail that translates directly to uniform pressures and repeatable velocities when you're at the reloading bench.

Hornady has built their reputation on treating brass as the heart of an accurate cartridge, not a disposable commodity. That philosophy shows in the wall concentricity and case-wall uniformity across every piece in this pack. Consistent case geometry helps ensure proper bullet seating in both your reloading dies and your firearm's chamber, which matters whether you're developing match-grade loads for a precision revolver or just want reliable, clean-shooting practice ammo. Because Hornady brass is manufactured to exacting standards, you'll get more reloads out of each case over its lifetime.

The .357 Magnum is a versatile round—equally at home in defensive carry guns, hunting revolvers, and target pistols—and having quality unprimed cases on hand means you can tune your loads to your specific firearm and intended use. Hornady's lot-to-lot consistency ensures that whether you're loading this pack today or in six months, your components behave the same way. That's what separates good reloading from great reloading.

Key Features

• Tight wall concentricity for consistent bullet seating and uniform chamber release
• Uniform case-wall thickness across the entire production lot
• High reloading durability—more cycles per case
• Lot-to-lot consistency in weight and internal capacity
• Unprimed, ready for your reloading press
• 100-count quantity per box

Specifications

Frequently Asked Questions

What caliber is this brass for?

This is .357 Magnum brass, suitable for revolvers and pistols chambered in .357 Magnum (and also for .38 Special if you want to load shorter rounds from the same case).

Do these cases come primed?

No, these are unprimed cases. You'll need to add primers during your reloading process using your reloading equipment.

How many times can I reload these cases?

Hornady brass is designed for multiple reloads. The exact number of times depends on your specific loads and how you handle the cases, but Hornady's manufacturing quality and uniform case construction support extended case life compared to lower-grade brass.

Why does case wall thickness matter for reloading?

Uniform case-wall thickness ensures consistent internal capacity across your brass lot. This means each case holds roughly the same volume of powder, leading to consistent pressures and velocities—essential for accuracy and safety.