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Highest Rifle Velocity
5278 fps in .22-243 Middl.
5130 fps in .22-250 Ack Im

Most Powerfull Rifle
14412 ft-lbs in .700 NE
13109 ft-lbs in .50 BMG


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.450 Alaskan

The 450 Alaskan was designed by Harold Johnson who was a resident of Cooper's Landing, Alaska. This cartridge was designed to meet the demands of hunters who wanted a lever action rifle that could deliver substantial energy and bullet mass for use against the largest and most dangerous of Alaskan game. Model 71's converted to this chambering are among the most prized rifles in Alaska. Ackley might have been the first to open the hole through the barrel and improve the chamber of the Model 71 Winchester. However, by Ackley's own testimony, Mr. Johnson's version of the 45 caliber 348 Improved is a better choice. 

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

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There is no printed reloading manual created for this caliber. There will be created a Wire-O booklet of all calibers with at least 60 loads present.
Click here to see in which calibers this reloading manual is available.


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reloadersnest Complete Reloading Manual
The Complete Reloading Manual is a compilation based on all rifle calibers with at least one load from this site.
The book contains 311 calibers and 9557 loads. 549 pages in 8x5 inch Perfect-Bound binding.
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350 grs
hornady FN
400 grs
400 grs
Winchester 748
300 grs
Cast with paper patch. Final dia . RESIZED to457"
Winchester 748
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