.458 HAM'R | 300GR, X-TREME RNFP, 20/BOX

Item Number

X-Treme Bullets features copper plating applied electrochemically to a precision swaged lead core.

In stock
70 % of 100

X-Treme Bullets features copper plating applied electrochemically to a precision swaged lead core. The base of the bullet is also fully coated in copper, so there is no exposed lead .

Uses: Hunting or self-defense

We are confident that Wilson Combat Custom Ammunition is defensive and hunting ammunition without equal in the ammunition industry. Wilson Combat Custom Ammunition features:

  • The highest quality, USA made brass cases, bullets, and other components
  • Clean burning, low-flash powders for preserved night vision and reduced firearm maintenance
  • Enhanced velocity loadings tailored to appropriate bullet construction for controlled expansion and deep penetration tested in real firearms, not test barrels
  • 100% produced and rigorously “white glove” hand-inspected at our facility in Berryville, AR

WARNING: .458 HAM’R® ammunition is loaded to much higher pressure than .458 SOCOM ammunition and is NOT safe to fire in a .458 SOCOM chambered rifle. DO NOT attempt to fire this ammunition in a rifle chambered for .458 SOCOM. 


Will a .458 HAM'R® chamber and fire in a .458 SOCOM chamber? Not during normal chambering since the HAM'R® case is .040" too long, If you tried to chamber the same HAM'R® cartridge repeatedly in a .458 SOCOM, the case shoulder could potentially set back the .040" that would allow chambering, thereby creating an overpressure situation that would most likely damage your .458 SOCOM rifle and potentially cause injury. 

Can you fire a .458 SOCOM in a .458 HAM'R® chamber? What would happen? Yes, the HAM'R extractor can hold the .458 SOCOM case close enough to the breech face for the gun to fire, although in an extreme excessive headspace state. This is not recommended and may cause damage to the ammunition and bolt assembly.

More Information
Typical Usage Practice
Firearm Type Rifle
Box Quantity 20
Velocity Range Supersonic
Caliber .458 HAM'R
Manufacturer Wilson Combat
Ammunition Type New
Ammo Case Material Brass
Bullet Used 300 gr. X-TREME RNFP
Test Barrel Length 18 inch
Muzzle Energy (ft-lb) 2665
Velocity - Muzzle (fps) 2000
  • For safety reasons, ammunition is not returnable.
  • All ammunition is considered hazardous and will be only shipped via ground shipping in the contiguous 48 states, and only to a verified street address.
  • You must be at least 21 years of age to purchase handgun ammunition and at least 18 years of age to purchase rifle or shotgun ammunition.
  • Please ensure you review the shipping restrictions that apply to ammunition purchases.
  • Please verify before completing your purchase that the ammunition you have selected is the correct type for your firearm.
  • WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and reproductive harm. For more information go to p65warnings.ca.gov.
  • Compliance with all laws is the responsibility of the purchaser.
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