.416 Ruger

The .416 Ruger is a .41 caliber (10.4mm), beltless, rimless, bottlenecked cartridge designed as a joint venture by Hornady and Ruger in 2008.

.416 Ruger
Place of originUnited States
Production history
Parent case.375 Ruger
Case typeRimless, bottleneck
Bullet diameter.416 in (10.6 mm)
Base diameter.532 in (13.5 mm)
Rim diameter.532 in (13.5 mm)
Rim thickness.050 in (1.3 mm)
Case length2.572 in (65.3 mm)
Overall length3.340 in (84.8 mm)
Case capacity100 gr H2O (6.5 cm3)
Primer typeLarge Rifle
Maximum pressure (SAAMI)62,000 psi (430 MPa)
Maximum pressure (CIP)62,366 psi (430.00 MPa)
Ballistic performance
Bullet mass/type Velocity Energy
400 gr (26 g) 2,400 ft/s (730 m/s) 5,115 ft⋅lbf (6,935 J)
Test barrel length: 24"
Source(s): [1]


The cartridge is based on the .375 Ruger case which was necked up to accept a .416 in (10.6 mm) bullet. It was designed as a dangerous game cartridge particularly for use in Alaska and Africa. The .416 Ruger duplicates the performance of the .416 Rigby and the .416 Remington Magnum. All three cartridge fire a 400 gr (26 g) bullet at 2,400 ft/s (730 m/s) generating 5,115 ft⋅lbf (6,935 J) of energy. However, unlike the Remington or Rigby .416s, the Ruger .416 can be chambered in a standard length action as the cartridge has a length of 3.34 inches. The cartridge has the same diameter of belted magnum cases but without the belt. This provides the cartridge a larger propellant capacity than a standard length magnum cartridge of the same length. The rimless design allows for the smoother feeding and extraction of the cartridge.

The .416 Ruger is chambered in the bolt-action Ruger M77 Hawkeye "African" and "Guide Gun" rifles, and Krieghoff rifles. No other manufacturer currently chambers this cartridge. Ammunition is available from Hornady, who is the sole supplier of ammunition for the cartridge.


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