.220 Howell Load Data

Caliber Overview

The .220 Howell is a wildcat cartridge designed for long-range shooting and hunting. Developed by Ken Howell, it is based on a .30-06 Springfield case, necked down to .22 caliber to achieve high velocities and flat trajectories. This design allows the .220 Howell to propel lightweight bullets at extremely high speeds, making it effective for varmint hunting and precision shooting.

Compared to traditional .22 centerfire cartridges, it offers increased case capacity and higher muzzle velocity, resulting in greater energy retention and improved long-range performance. While not commercially available, handloaders and custom rifle builders favor it for its versatility and ballistic efficiency.