RCS
05-27-2021, 06:02
The 450 Alaskan was developed in the early 1950's as a big game cartridge for use at
short ranges as found in Alaska. Harold Johnson (Cooper Landing, Alaska) built the first
450 cartridge by necking-up the 348 Winchester to accept a 458 diameter bullet. Ackley
also made a 450-348 cartridge variation too.
Some years ago, a good friend of mine bought a Winchester Model 71 rifle that had been
a custom build in 450 Alaskan by George Pearsall who had a shop at 514 N. State St in
Chicago. He also had RCBS loading dies that came with the rifle, as I was set-up to load
rifle cartridges, I helped him convert the 348 WCF to 450 Alaskan. Also made a neck
expander to open the 348 case in steps to 450 diameter. We fired formed, annealed, and
trimmed the cases to the correct length. Using IMR 3031 we developed an excellent
load using 400 gr flat nose soft point jacket bullets at around 2000 + fps.
My friend took his 450 Alaskan to Canada a few times and also hunted in Michigan with it.
Gunsmiths are still building the 450 Alaskan converting the new Browning Model 71 and
there is also the 50 cal Alaskan too
My photo shows the 348 Win and 450 Alaskan49282
short ranges as found in Alaska. Harold Johnson (Cooper Landing, Alaska) built the first
450 cartridge by necking-up the 348 Winchester to accept a 458 diameter bullet. Ackley
also made a 450-348 cartridge variation too.
Some years ago, a good friend of mine bought a Winchester Model 71 rifle that had been
a custom build in 450 Alaskan by George Pearsall who had a shop at 514 N. State St in
Chicago. He also had RCBS loading dies that came with the rifle, as I was set-up to load
rifle cartridges, I helped him convert the 348 WCF to 450 Alaskan. Also made a neck
expander to open the 348 case in steps to 450 diameter. We fired formed, annealed, and
trimmed the cases to the correct length. Using IMR 3031 we developed an excellent
load using 400 gr flat nose soft point jacket bullets at around 2000 + fps.
My friend took his 450 Alaskan to Canada a few times and also hunted in Michigan with it.
Gunsmiths are still building the 450 Alaskan converting the new Browning Model 71 and
there is also the 50 cal Alaskan too
My photo shows the 348 Win and 450 Alaskan49282