top of page
.220 Howell
You need to be a member to bookmark a load !
Caliber Specifications:
Caliber: | .220 Howell |
Standard / Datasheet: | Wildcat |
Bullet Diameter: | 0.224" | 5.69mm |
Primer Size: | Large Rifle (LR) |
Max. Case Length: | 2.395" | 60.83mm |
Max. Cartridge Length / OAL: | 3.100" | 78.74mm |
Max. Standardized Pressure: | 58015 psi | 4000 bar |
Case Capacity: | 62.0 Grains of Water | 4.03 cm3 |
CID: | CID_118 |
Last updated: | 3/19/2025 |
- 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.
#1
Add a Title
Add a Title
Most popular powders from our community members for caliber .220 Howell:
Weight vs. Velocity - Suitable Bullets for this Caliber
Add paragraph text. Click “Edit Text” to update the font, size and more. To change and reuse text themes, go to Site Styles.
Barrel Length Variation vs. Velocity - by Bullet Weight
.220 Howell load data available with the following bullets:
(most popular first)
Filter by Bullet Weight (Grains)
bottom of page