HORNADY 4500 INTERLOCK 45 CAL .458 300 GRAIN HOLLOW POINT 50 CNT

Hornady InterLock (4500) component bullets give reloaders a heavy, hard-hitting 45 caliber hollow point rifle bullet for handloading 45-70 Government, 458 Winchester Magnum, and other 45 caliber rifle cartridges where deep penetration and maximum mass retention on large and dangerous game are the priority. These 45 caliber .458 diameter 300 grain hollow point InterLock bullets pack 50 per box and are the go-to reloading component for big game hunters who need a controlled-expansion rifle bullet that stays together through heavy bone and dense muscle.

Key Features

• Manufacturer Part Number: 4500
• Caliber: 45 Caliber, compatible with 45-70 Government, 458 Winchester Magnum, and similar 45 caliber rifle cartridges
• Bullet Diameter: .458 inch
• Bullet Weight: 300 grains
• Bullet Style: InterLock Jacketed Hollow Point
• Jacket Material: Copper, tapered
• Core Material: One-piece lead alloy
• G1 Ballistic Coefficient: .197
• Sectional Density: .204
• Cannelure: Yes, applied before final forming
• Quantity: 50 bullets per box
• Country of Origin: USA

Special Features

• Raised InterLock ring is embedded directly into the one-piece lead core, mechanically locking the core and jacket together during expansion to prevent separation and maintain mass through heavy-bodied game.
• Inner grooves strategically weaken the upper jacket section to initiate consistent, controlled expansion at long range and across the wide velocity spreads that different barrel lengths produce.
• Tapered jacket provides precisely controlled expansion at lower velocities while preventing over-expansion at close-range, high-velocity impacts where standard cup-and-core bullets often shed their jackets entirely.
• Secant ogive design produces a lower-drag, aerodynamic profile while maintaining a long bearing surface for increased stability and accuracy from lever-action and bolt-action 45 caliber rifles.
• Cannelure works in tandem with the InterLock ring to lock the core and jacket together during penetration and provides a firm, consistent crimp seat for uniform overall cartridge length.

Practical Benefits

• Big game hunters running 45-70 lever-action rifles will find the 300 grain weight and InterLock design deliver the penetration depth and structural integrity needed for clean, ethical kills on elk, bear, and bison-class animals.
• Reloaders building 458 Winchester Magnum loads for dangerous game hunting get a bullet proven to hold together through the tough angles and heavy resistance that large African and North American game presents.
• The combination of high sectional density and controlled expansion gives you a bullet that drives straight and exits cleanly, producing consistent wound channels and reliable terminal results regardless of shot placement angle.
• Your handloads built on the Hornady InterLock (4500) deliver the penetration and mass retention that professional guides and serious big game hunters depend on when one shot has to count.

The Hornady InterLock (4500), a 45 caliber .458 diameter 300 grain hollow point rifle bullet, is a proven platform and confident choice for reloaders who demand deep penetration, maximum weight retention, and consistent terminal performance on large and dangerous game.