Speer 4207 .357 Magnum 158gr TMJ Bullets
$21.52
23 in stock
Speer's Total Metal Jacket .357 Magnum bullets feature Uni-Cor technology for complete lead encasement, delivering cleaner shooting, superior accuracy, and consistent performance in every round.
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Speer Total Metal Jacket Handgun Bullets
Speer's Total Metal Jacket (TMJ) bullets represent a significant advancement in handgun ammunition design. Unlike conventional full metal jacket rounds that leave lead exposed at the base, these .357 Magnum projectiles use Uni-Cor technology to completely encase the lead core in a seamless jacket.
Key Features
- Complete Lead Encasement: Molten lead is poured directly into the jacket, creating a flawless seal that prevents base deformation under pressure
- Superior Accuracy: The seamless jacket design delivers more consistent ballistics and tighter shot groups
- Cleaner Shooting: Total metal jacket construction eliminates lead exposure, reducing airborne lead and fouling
- Ported Compensator Compatible: Won't foul or damage ported recoil compensators on modern pistols
- Precision Manufacturing: Swaged twice for uniform heel geometry and absolute consistency in bullet diameter
Specifications
- Caliber: .357 Magnum/.38 Special
- Weight: 158 grains
- Bullet Type: Total Metal Jacket (TMJ)
- Quantity: 100 bullets per box
- Case Quantity: 5 boxes per case (500 total)
These bullets are an excellent choice for reloaders seeking affordable yet reliable ammunition for target shooting, practice, or personal defense applications.
Attributes
Ballistic Coefficient:
0.173
Bullet Diameter:
.357
Bullet Type:
Total Metal Jacket
Caliber:
.38 Caliber
Cannelure:
Yes
Core Material:
Lead
Grain Weight:
158 Gr
Jacket Material:
Copper
Overall Length:
0.640"
Quantity:
100 Per Box
Recommended Usage:
Target
Sectional Density:
0.177
