Cartridge comparison
.22-243 Winchester vs .22-250 Ackley Improved
.22-243 Winchester and .22-250 Ackley Improved are both in the reference; see the full spec comparison below.
Side by side
| .22-243 Winchester | .22-250 Ackley Improved | |
|---|---|---|
| Type | Wildcat | Rifle |
| Introduced | 1958 | 1955 |
| Bullet diameter | 0.224″ | 0.224″ |
| Case length | 2.045″ | 1.9402″ |
| Max pressure | 60,000 psi | 65,000 psi |
| Recoil | 5–8 ft·lb | 5.1–8.1 ft·lb |
| Effective range | 300 yd | 500 yd |
| SAAMI | Wildcat | Not SAAMI standardized |
| CIP | Not standardized | Not standardized |
| Obsolete | Obsolete | — |
Highlighted cells hold the clear edge where both sides have a number. Every figure is a range maximum from the reference; typical loads run lower.
Case profiles, to scale
Drawn to the same scale, so the proportions are true. Physical size varies with your screen.