Speer’s Total Metal Jacket line covers a wide range of handgun calibers, and this 125 gr .355-diameter bullet (part no. 4362) is cataloged for .357 SIG and .38 Super. Speer builds TMJ bullets with its Uni-Cor process, pouring molten lead directly into the jacket so the core is completely encased rather than exposed at the base. That fully enclosed base resists deformation under chamber pressure and won’t foul a ported recoil compensator the way an exposed-lead bullet can, and each bullet is swaged twice for a uniform heel and consistent diameter. This is a component bullet for handloaders, not a loaded round.

Key Specifications

• Bullet weight of 125 grains.
• Diameter of .355 inch.
• Cataloged for .357 SIG and .38 Super.
• Total Metal Jacket (TMJ) construction fully encases the lead core, including the base.
• Built with Speer’s Uni-Cor process, pouring molten lead directly into the jacket.
• Fully enclosed base resists deformation under chamber pressure.
• Enclosed base also won’t foul ported recoil compensators the way exposed-lead bullets can.
• Swaged twice for a uniform heel and consistent diameter.
• Sold as a component bullet for handloading, not as loaded ammunition.

Frequently Asked Questions

What calibers does this bullet fit? It’s a .355-inch-diameter bullet cataloged for .357 SIG and .38 Super.

Is this safe for a compensated pistol? The fully enclosed TMJ jacket doesn’t expose lead at the base, which Speer designed specifically to avoid fouling ported recoil compensators.

Is this loaded ammunition? No, this is a component bullet for handloaders; it does not include brass, powder, or primers.

Buy the Speer TMJ Handgun Bullets, .38 Cal (.357 SIG/.38 Super) 125 gr

Reserve the Speer TMJ Handgun Bullets, .38 Cal (.357 SIG/.38 Super) 125 gr through our Lubbock, Texas gun shop and it’ll ship as soon as it’s ready to go. See our full reloading bullets selection for other Speer handgun bullets.