.50 Alaskan

 
.50 Alaskan
 
 

The 50 Alaskan was created by Harold Johnson, Alaska, in the 1950s. Its based on a straighten 348 WCF to accept the .512 inch bullet. Since the rifle was designed for use on Alaskas great bears, Johnhnson cut 720-grain boat-tail .50 BMG bullets in half, seating the 450-grain rear half upside down in the fireformed .50-caliber case. It didnt take Johnson long to find out that the 450-grain truncated shaped solid would shoot through a big brown bear from any direction, claiming in 1988, I never recovered a slug from a bear or moose, no matter what angle the animal was shot at. Harolds favorite load in the .450 Alaskan was 51.5 grains of IMR-4198 with a Barnes 400-grain flatnose ,jacketed bullet for about 2,100 fps and just under 4,000 foot-pounds (ft-lbsj of muzzle energy, so its logical to assume he knew the .50 would surpass the .450 Alaskan owing its slightly larger powder capacity and increased expansion ratio. 

This text is based on information from “Cartridges of the World”, Hodgdon reloading manual, the cartridge designer and/or own resources.

   
Bullet weight: Bullet name: Powder:  

 
Not yet verified user loads  
ID: Bullet weight: Bullet name: Powder:  
750 grs
Hornady AMAX
RE7
470 grs
cast
Re7
535 grs
Barnes solid
H4198
500 grs
Woodleigh
H4198
350 grs
Cast round nose buffalo arms
H4198
450 grs
Barnes original
H4198
570 grs
Barnes solid
H4198