The .450 Howell is a .404 Jeffery shortened to 2.5" and then sized to .458". It was designed to duplicate the .458 Win but at lower pressures.

The rifle is a CZ .458 Win re-chambered to .450 Howell.
[Linked Image from i.imgur.com]

The .450 Howell on the left and the .460 Wby on the right.
[Linked Image from i.imgur.com]


Life Member SCI
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Member New Mexico Shooting Sports Association

Take your responsibilities seriously, never yourself-Ken Howell

Proper bullet placement + sufficient penetration = quick, clean kill. Finn Aagard

Ken