Sierra Sports Master Sierra 8310 .357 125gr JSP - 100 Rounds

The Sierra Sports Master Sierra 8310 .357 125gr JSP is a handgun bullet engineered for reloaders who want reliable, consistent performance across a range of hunting and target applications. This 100-round box of .357 caliber jacketed soft points delivers the energy retention and expansion characteristics that make Sierra a trusted choice among handloaders—whether you're loading for a snubby revolver, mid-sized wheelgun, or semi-auto in this classic caliber.

What sets these .357 bullets apart is the serrated power jacket design on the hollow cavity construction. That serrated feature works by creating uniform expansion along its grooves upon impact, which means more predictable energy transfer and better weight retention downrange. For hunters using .357 Magnum or .357 Maximum loads, that consistency matters—it's the difference between a clean take on medium game and a wounded animal. Reloaders also appreciate the engineering that lets these bullets perform well across a wide velocity window, so your handloads don't need to be dialed in to a razor-thin pressure band to work reliably.

Sierra backs these bullets with a guarantee on materials and workmanship quality, which is reassuring when you're investing time and components into custom ammunition. Whether you're developing hunting loads for .357 Magnum or building target rounds for the range, the 125-grain weight is a versatile choice that balances velocity, recoil, and terminal performance.

Key Features

• Serrated power jacket for uniform, controlled expansion along the hollow cavity
• Consistent performance across a range of velocities and load pressures
• Proven weight retention upon impact for reliable energy transfer
• 100-round convenient reloading package

Specifications

Frequently Asked Questions

What firearms can I reload for with Sierra 8310 .357 bullets?

These .357 125gr bullets are designed for .357 Magnum and .357 Maximum handguns, including revolvers and semi-automatic pistols chambered in those calibers.

Will these bullets perform reliably in light loads as well as magnum loads?

Yes. The Sierra Sports Master design is engineered to offer consistent expansion and performance over a wide range of velocities, so they'll work reliably whether you're loading them for standard-pressure or magnum-level handloads.

What's included in this box?

You receive 100 .357 125-grain jacketed soft point bullets, ready for your reloading press.