Description
If you've got a .22 WMR rifle or revolver sitting around and need a specialized load for pest control, these shotshells do exactly what they're designed for. The 52-grain payload of #12 shot packs enough pellets to take down small animals at close range while staying safe in confined spaces like barns or sheds. The fine shot size produces a dense pattern, which is what you want when accuracy matters.
What Makes These CCI Shotshells Different
CCI builds these rounds with the same clean-burning propellants and reliable priming compound they're known for in their other rimfire loads. The residue they leave behind washes out with standard cleaning, so you won't be scrubbing your action for hours. At 1000 fps, the pellets lose velocity quickly—that's actually a benefit here since you don't have overpenetration concerns in tight spaces. The aluminum case keeps weight down, and everything comes in a reusable plastic box for storage.
Short-Range Performance and Real-World Applications
These aren't rifles ammo—they're purpose-built for close work on pests. Field experience shows the pattern stays tight and effective from 3 to maybe 5 feet out, where you'd typically be dealing with rats, snakes, or aggressive ground squirrels. Once you get beyond that, the spread opens up and energy drops off. Works great out of revolvers since there's no cycling concern. Semi-auto rifles won't cycle these on their own, so you'll be manually working the action between shots.
A Few Important Considerations
CCI specifically notes not to use these in firearms with ported barrels or ported recoil compensators—the capsule can break up prematurely and create unsafe conditions. Also know that these aren't designed to reload. The cases are marked NR for a reason, and attempting it risks serious injury. If you're using a lightweight revolver, there's a small chance the capsule movement can cause temporary cylinder lockup from recoil, but it's rare and clears immediately.
Key Specifications
- Caliber: .22 Winchester Magnum Rimfire (22 WMR)
- Shot Weight: 52 Grains
- Shot Size: #12
- Muzzle Velocity: 1000 fps
- Muzzle Energy: 115-117 ft lbs
- Rounds Per Box: 20
- Case Material: Aluminum
- Manufacturer: CCI Ammunition
- Model: Pest Control Maxi-Mag
- Manufacturer Part Number: 0025
- UPC: 076683000255
- Reloadable: No
What’s Included
- 20 rounds of CCI 22 WMR shotshell ammunition
- Reusable plastic dispenser box
Frequently Asked Questions
Will CCI 22 WMR shotshells cycle in my semi-automatic rifle?
No, these rounds don't produce enough recoil impulse to cycle most semi-automatics. You'll need to manually work the action between shots. They work fine in bolt-action rifles and revolvers without any issues.
What's the effective range for this shotshell?
These are designed for very close work—typically 3 to 5 feet maximum. Beyond that, the pellet pattern opens up significantly and velocity drops off. They're purpose-built for confined spaces like barns, sheds, and tight quarters where traditional rifle ammo could overpenetrate.
Can I reload these cartridge cases?
No. The cases are marked NR (Not Reloadable) and attempting to reload them creates a serious safety risk. Cases can rupture under pressure, causing injury. Always discard used cases and use factory ammunition only.
Why shouldn't I use these in a gun with a ported barrel?
The shot capsule can break apart prematurely when passing through ported barrels or ported recoil compensators, leading to unsafe firing conditions. Stick to standard barrels for reliable and safe operation.




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