Speer 4399 TMJ .400 155-Grain Handgun Bullets

$22.53 59 in stock

Speer's Total Metal Jacket .400 155-grain bullets feature Uni-Cor technology for complete lead encasement. Clean, accurate, and consistent—ideal for .40 S&W and 10mm reloaders. 100 per box.

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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 .400 155-grain bullets employ 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 with no exposed lead at the base
  • Superior Accuracy: The uniform construction delivers consistent performance shot after shot
  • Dual Swaging Process: Bullets are swaged twice to ensure uniform heel geometry and absolute consistent diameter
  • Ported Compensator Safe: Won't foul ported recoil compensators, making them ideal for competition and tactical shooters
  • Pressure Resistant: Base design prevents deformation under pressure

Ideal For

These bullets are an excellent choice for reloaders working with .40 S&W and 10mm cartridges. Whether you're a competition shooter, tactical practitioner, or recreational reloader, Speer TMJ bullets deliver the cleanliness, accuracy, and consistency that serious shooters demand.

100 bullets per box

Attributes

Bullet Diameter: .400
Caliber: .40 caliber
Grain Weight: 155 gr
Bullet Type: Total Metal Jacket
Ballistic Coefficient: 0.125
Jacket Material: Copper
Sectional Density: 0.138
Overall Length: 0.538"
Quantity: 100 Per Box
Recommended Usage: Target
Core Material: Lead
Cannelure: No