Speer TNT 30Cal 125gr Jacketed Hollow Point 500 Per Box/1 Case 4725

The Speer TNT .30 Cal 125gr Jacketed Hollow Point (JHP) Bullets, 500 Per Box / 1 Case (4725, UPC 076683047250) are varmint- and target-oriented projectiles engineered for rapid expansion and reliable accuracy in .30 caliber centerfire rifle cartridges. Designed around Speer’s TNT thin-jacket construction and precision-formed hollow point cavity, these 125-grain bullets are suitable for high-velocity loads where explosive terminal performance on small game and varmints is desired, while still providing the uniformity needed for consistent downrange grouping.

Product Identification and Core Specifications

• Manufacturer: Speer Bullets

• Product Line: TNT

• Caliber: .30 caliber (.308" diameter)

• Bullet Weight: 125 grains

• Bullet Type: Jacketed Hollow Point (JHP), TNT varmint design

• Quantity: 500 bullets per box / 1 case

• Manufacturer Part Number: 4725

• UPC: 076683047250

These are projectiles only intended for handloading; they are not loaded ammunition and require appropriate brass, powder, primers, and safe reloading practices.

Bullet Construction and Design Features

The Speer TNT 125gr .30 cal projectile incorporates several construction elements tailored for varmint and high-velocity applications:

• Jacketed Hollow Point (JHP):

  • Precision-formed hollow point cavity at the nose initiates rapid upset on impact.

  • Helps promote fast expansion and fragmentation at typical varmint and predator velocities.

• TNT Thin-Jacket Design:

  • Very thin, uniform copper alloy jacket engineered to rupture quickly upon impact with soft tissue.

  • Supports “explosive” terminal effect on small targets while minimizing over-penetration.

• Lead Core:

  • Swaged lead core matched to the jacket profile for balance and concentricity.

  • Designed to complement the thin-jacket construction for reliable expansion across a wide velocity range.

The combination of hollow point cavity and thin-jacket geometry is what defines the TNT line, making it especially suited to small game, varmints, and reactive target use where rapid energy dump is preferred.

Diameter, Weight, and Ballistic Characteristics

• Caliber / Diameter: .30 caliber, nominal 0.308 inch bullet diameter

• Weight: 125 grains

This weight and diameter combination is commonly used in a variety of .30-caliber rifle cartridges, including but not limited to:

• .300 AAC Blackout (supersonic loadings)

• .308 Winchester (light varmint loads)

• .30-06 Springfield (light, high-velocity loads)

• Other .30-caliber centerfire cartridges using .308" bullets

Exact ballistic performance (muzzle velocity, trajectory, and terminal effect) will depend on the specific cartridge, barrel length, powder charge, and overall load configuration developed by the handloader.

Intended Applications

The Speer TNT 125gr JHP is optimized for:

• Varmint and Predator Control:

  • Designed for rapid expansion on small to medium-sized varmints such as prairie dogs, groundhogs, coyotes, and similar species.

  • Thin jacket and hollow point structure enhance energy transfer in lighter-bodied game.

• Target and Practice Use:

  • Uniform jacket and core support good accuracy for general-purpose target shooting and load development.

  • Useful for shooters who want a lighter .30-cal bullet for reduced recoil (relative to heavier .30-cal bullets) at similar velocities.

Because of the fast-expanding TNT design, these bullets are typically not intended for large game or applications requiring controlled, deep penetration.

Packaging and Quantity

• Count per Box / Case: 500 bullets

• Packaging: Bulk boxed for volume reloaders; inner packaging is typically designed to protect bullet noses and maintain consistent jacket condition during shipping and storage.

The 500-count bulk pack is particularly suitable for high-volume shooters and reloaders who conduct extensive varmint shooting or frequent range sessions and prefer to standardize on a single bullet profile for multiple load recipes.

Reloading Considerations

Key technical notes for handloaders:

• Component Type: Projectile only (no powder, primer, or brass included).

• Seating and COAL:

  • Proper seating depth and cartridge overall length (COAL) depend on the specific cartridge, chamber dimensions, and magazine constraints.

  • As with any bullet, handloaders should consult up-to-date, reputable load data sources for starting loads and maximum charges.

• Twist Rate Compatibility:

  • At 125 grains in .308 diameter, these bullets are generally well-stabilized in a broad range of common .30-cal rifle twist rates (e.g., 1:10", 1:11", 1:12"), though specific stability should be verified for very slow twist barrels or unusual setups.

• Velocity Window:

  • TNT bullets are designed for high-velocity use typical of centerfire varmint cartridges.

  • Excessive velocities beyond recommended levels or use on inappropriate targets can affect terminal performance and bullet integrity.

Always follow published reloading data, observe pressure signs, and adhere to safe reloading practices.

Technical Summary

Speer TNT 30 Cal 125gr JHP 500/Box – 4725

• Brand: Speer

• Line: TNT

• Caliber: .30 cal (.308" diameter)

• Bullet Weight: 125 grains

• Construction: Jacketed hollow point, thin-jacket TNT varmint design

• Core: Lead

• Quantity: 500 bullets per box / 1 case

• Part Number: 4725

• UPC: 076683047250

• Intended Use: Varmint/predator hunting and general-purpose target shooting with .30-cal centerfire rifles

• Key Features:

  • Thin, uniform jacket for rapid expansion

  • Precision hollow point cavity

  • Designed for consistent accuracy and explosive terminal effect on small game

By combining a thin, uniform TNT jacket, a precisely formed hollow point, and a versatile 125-grain .308-caliber profile, the Speer TNT 30Cal 125gr Jacketed Hollow Point 500 Per Box / 1 Case 4725 offers a technical projectile solution for reloaders seeking accurate, fast-expanding bullets for varmint and light-target applications in a variety of .30-caliber rifle platforms.

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