The Speer .38 Cal 158 Grain TMJ handgun bullets offer reloaders a reliable, cost-effective option for .38 Special and .357 Magnum loads. Built with Speer's Uni-Cor technology, these Total Metal Jacket projectiles encapsulate a lead core completely within a seamless jacket—a manufacturing process that ensures consistent performance and eliminates exposed lead at the base that can deform under pressure. Whether you're loading target ammo or duty rounds, these 357-diameter bullets deliver the dependability you need at a price that keeps your reloading bench running economically.

The total metal jacket construction brings practical benefits beyond accuracy. TMJ bullets won't leave lead fouling in ported compensators or slide-eating residue in your gun, which matters if you're shooting suppressed or running modified firearms. The Uni-Cor process also means each bullet exits the factory with a uniform heel and consistent diameter—critical factors for reliable feeding, bullet seating, and velocity consistency across your batch.

Speer's double-swaging process ensures the heel is squared and the jacket diameter is uniform, eliminating variables that trip up reloaders chasing tight velocity spreads. At 158 grains, this bullet weight is a workhorse for .38 Special target loads and a proven performer in .357 Magnum hunting and defense scenarios. You get 100 bullets per box, enough for a solid reloading session or to establish your load data without breaking the bank.

The Speer .38 Cal 158 Grain TMJ handgun bullets offer reloaders a reliable, cost-effective option for .38 Special and .357 Magnum loads. Built with Speer's Uni-Cor technology, these Total Metal Jacket projectiles encapsulate a lead core completely within a seamless jacket—a manufacturing process that ensures consistent performance and eliminates exposed lead at the base that can deform under pressure. Whether you're loading target ammo or duty rounds, these 357-diameter bullets deliver the dependability you need at a price that keeps your reloading bench running economically.

The total metal jacket construction brings practical benefits beyond accuracy. TMJ bullets won't leave lead fouling in ported compensators or slide-eating residue in your gun, which matters if you're shooting suppressed or running modified firearms. The Uni-Cor process also means each bullet exits the factory with a uniform heel and consistent diameter—critical factors for reliable feeding, bullet seating, and velocity consistency across your batch.

Speer's double-swaging process ensures the heel is squared and the jacket diameter is uniform, eliminating variables that trip up reloaders chasing tight velocity spreads. At 158 grains, this bullet weight is a workhorse for .38 Special target loads and a proven performer in .357 Magnum hunting and defense scenarios. You get 100 bullets per box, enough for a solid reloading session or to establish your load data without breaking the bank.