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The Ultimate Reloading Manual
Wolfe Publishing Group
  • alliant reloading data
  • reloading brass
  • shotshell reloading
The Ultimate Reloading Manual

.50 Alaskan

.50 Alaskan
Warning! Notes: ("The Legacy of Lever Guns")
Cartridge History

.50 Alaskan

The .50 Alaskan is one of the most famous and respected American wildcat cartridges ever developed. Designed during the 1950s by Alaskan gunsmith Harold Johnson, the cartridge was created to provide hunters and guides in Alaska with a powerful lever-action round capable of stopping large and dangerous game at close range. Built from the .348 Winchester case necked up to accept .510-inch bullets, the .50 Alaskan quickly earned a reputation for massive power and reliability in harsh wilderness conditions.

Harold Johnson originally designed the cartridge for converted Winchester Model 71 rifles, which were already known for their strength and smooth operation. At the time, many outdoorsmen in Alaska needed a compact rifle that could deliver significantly more stopping power than standard lever-action cartridges. Brown bears, moose, and other large game animals often required immediate stopping capability at short distances, especially in thick brush or dangerous encounters. The .50 Alaskan answered that need with heavy bullets and tremendous energy.

Most .50 Alaskan loads use bullets weighing between 300 and 525 grains. Depending on the load and barrel length, velocities generally range from approximately 1,700 to over 2,000 feet per second. Heavy hard-cast bullets are especially popular for protection against dangerous game because of their deep penetration and ability to break heavy bone. Despite its relatively modest velocity compared to modern magnum cartridges, the .50 Alaskan produces enormous impact energy and excellent performance within practical hunting distances.

Although the cartridge was originally intended for lever-action rifles, modern firearm manufacturers and custom shops have continued supporting the round through converted Marlin and Winchester rifles. Companies such as Wild West Guns helped introduce the cartridge to a newer generation of shooters interested in large-bore lever guns and Alaskan-style hunting rifles. The cartridge has also become popular among firearm enthusiasts simply because of its unique combination of old-school lever-action styling and extreme power.

Recoil from the .50 Alaskan is substantial and often described as severe in lighter rifles. However, experienced shooters appreciate the cartridge for its reliability, authority, and historical significance. It occupies a unique place among American sporting cartridges, standing as a symbol of practical frontier innovation and the rugged demands of hunting in Alaska’s unforgiving wilderness.

Be Alert: Publisher cannot be responsible for errors in published load data.
Wt. Bullet Powder Manufacturer Powder Charge Velocity (FPS)
450 Barnes IMR IMR-4198 Subscribe 1,905
Remarks:
450 Barnes Alliant RL-7 Subscribe 1,994
Remarks:
485 LBT IMR IMR-4198 Subscribe 1,827
Remarks:
485 LBT IMR IMR-4198 Subscribe 1,983
Remarks:
485 LBT IMR IMR-4198 Subscribe 2,009
Remarks:
485 LBT Alliant RL-7 Subscribe 1,711
Remarks:
485 LBT Alliant RL-7 Subscribe 1,820
Remarks:
485 LBT Alliant RL-7 Subscribe 1,892
Remarks: