.44 Magnum / .444 Marlin — 300 Grain .429 Wide Flat Nose Bullets – Gold Country Rhino

.44 Magnum / .444 Marlin — 300 Grain .429 Wide Flat Nose Bullets – Gold Country Rhino

$89.95

Built for mass, momentum, and straight-line authority.

Heavy 300-grain .429 Rhino Wide Flat Nose hunting bullets designed for lever-action rifles such as .44 Magnum and .444 Marlin. Built for reliable tubular-magazine feeding and deep penetration without relying on fragile expansion or velocity-sensitive behavior on game.

In stock

Description

Heavy by Design. Stable by Structure.

The 300-grain Gold Country Rhino is not a compromise bullet.

It exists for shooters who need maximum mass, predictable penetration, and structural integrity across a wide range of impact energies — especially in platforms where lighter bullets lose momentum too quickly or fail structurally.

This bullet does not chase expansion.
It delivers crush, continuity, and control.


The 300-grain configuration emphasizes momentum and penetration, characteristics that have long made heavy .44-caliber bullets effective in woods hunting rifles.

Typical rifle applications include:

  • .44 Magnum lever-action rifles
  • .444 Marlin hunting rifles

In these platforms the Rhino bullet provides a combination of reliable feeding, strong structural integrity, and the large frontal impact area that hunters expect from traditional lever-gun bullets.

For handloaders working with heavy .44-caliber rifle cartridges, the Gold Country Rhino 300-grain Wide Flat Nose offers a purpose-built hunting bullet designed for real field conditions.

 


Shared Rhino Jacket Architecture

The 300-grain Rhino uses the same thick, mechanically supported copper jacket found throughout the Rhino Bullet System.

That jacket was engineered to remain intact under elevated impact velocities and heavy resistance — maintaining mass and directional stability where lighter or thinner designs fail.

This is why Rhino bullets perform consistently across:

  • Handguns

  • Lever-action rifles

  • High-energy straight-wall and magnum platforms

Weight changes the momentum.
The behavior stays the same.


Cannelured, Flat Base, Hand-Swaged

The Rhino’s cannelure ensures secure seating and reliable retention under recoil and tubular magazine use.

The flat base contributes to consistent ignition and stability, especially in shorter barrels and heavy-for-caliber loads.

Each bullet is hand swaged, delivering:

  • Uniform jacket concentricity

  • Consistent core placement

  • Repeatable weight and balance

This is match-grade construction applied to a working bullet.


Who This Bullet Is For

The 300-grain Rhino is ideal for shooters who prioritize:

  • Deep, straight-line penetration

  • Heavy bullet momentum

  • Reliable performance across platforms

  • Predictable terminal behavior over dramatic expansion

If you already know why you want 300 grains in .429 — this bullet solves the problem without explanation.

 

Referenced In:

Related Chapters & Technical Notes:

Chapter 7 — Accuracy & Precision Expectations

TN-17 — Rifle vs. Revolver Loads: Mechanical Realities

Jacketed 300gr .429

  • Series: Generic
  • Style: Jacketed
  • Grain: 300
  • Diameter: .429
  • TwistRate: 1:1
  • CompatibleCartridges: .44 Auto Mag, .44 Colt, .44 WCF / .44-40 Winchester, .444 Marlin, 44 Magnum, 44 Special
  • UseCase: Medium/Large Game Hunting
  • SourceType: Generic

Cartridge Powder Charge Velocity COAL Source
44 Magnum (Handgun) W296 17.0-20.2 gr 1266-1325 fps 1.685" Gold Country
44 Magnum (Handgun) H110 17.0-20.0 gr 1250-1320 fps 1.685" Gold Country

 

Specifications

  • Brand: Gold Country Ammo

  • Bullet Line: Rhino

  • Diameter: .429

  • Weight: 300 Grain

  • Construction: Copper jacketed, lead core

  • Nose Profile: Wide flat nose, exposed lead

  • Base: Flat

  • Cannelure: Yes

  • Manufacturing: Hand swaged

  • Quality Grade: Match-grade construction

  • Intended Use: Hunting, defense

  • Platform Compatibility: Rifle or handgun

  • Quantity: 50 bullets per box

Additional information

Weight 3 lbs
Dimensions 4 × 4 × 4 in
Manufacturer

Jackson's Gold Country Ammo

Manufacturer

Caliber

Package QTY

Diameter

Bullet Name

Grain Weight

Jacketed

Jacket Type

Cannelure

Condition

Frame / Material

Cartridge

.44 Magnum

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