Speer .38/.357 Caliber 125-Grain Total Metal Jacket Bullets (Speer part no. 4015) are component projectiles sized at .38/.357 (.357-.359-inch) for handloaders building their own .38/.357 Caliber ammunition, packed 100 to the box. Unlike conventional FMJ bullets that leave lead exposed at the case base, these bullets use Speer’s Uni-Cor technology to completely encase the lead core in a seamless jacket. The result is a cleaner-shooting, more accurate, and more consistent bullet than a standard FMJ, ideal for high-volume range and practice shooting. These bullets give reloaders a proven, name-brand option for building consistent .38/.357 Caliber handloads batch after batch.

Key Specifications

• .38/.357 (.357-.359-inch) is the exact bullet diameter these projectiles are sized to.
• 125 grains is the bullet weight, a key factor in trajectory and recoil for your handload.
• Total Metal Jacket describes the bullet’s jacket and expansion design.
• 100 bullets per box gives handloaders a practical bulk count for regular reloading sessions.
• Uni-Cor jacket technology fully encases the lead core, unlike a conventional FMJ that leaves lead exposed at the base.
• Cleaner-shooting than conventional FMJ since no lead is exposed at the bullet base to foul the bore.
• More consistent accuracy than conventional FMJ is Speer’s stated result of the seamless Uni-Cor jacket.

Frequently Asked Questions

Is this a loaded cartridge or just the bullet? This is the bullet component only, sold for handloaders to seat into their own cases; it is not a loaded, ready-to-fire cartridge.

What bullet diameter is this sized for? .38/.357 (.357-.359-inch).

Buy the Speer .38/.357 Caliber 125gr Total Metal Jacket Bullets, 100-Count

Building your own .38/.357 Caliber handloads starts with a proven bullet, and Speer backs these with decades of ballistic engineering. Order through Speer‘s reloading bullets lineup and our Lubbock, Texas team will get it to your door as soon as it’s ready to go.