Speer Bullets .38 Cal (357 Dia) 158 Grain TMJ - Box of 100
- Capacity-Rounds:
- 100
- Caliber-Gauge:
- 38 Caliber
- Grain:
- 158
- Quantity:
- 100 Per Box
- Core Material:
- Lead
- Jacket Material:
- Copper
- Recommended Usage:
- Target
- Sectional Density:
- 0.177
- Bullet Diameter:
- 0.357
- Cannelure:
- Yes
- Coefficient:
- 0.173
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.

