CCI 0055 .17 HMR 20 Grain FMJ – Fast Target and Varmint Accuracy

This CCI 0055 .17 HMR 20GR Full Metal Jacket (FMJ) is a top-of-the-line rimfire cartridge that is made for fast accuracy, consistent reliability, and clean shooting. Whether you are a varmint hunter, target shooter, or plinker, this cartridge has everything you need for excellent performance from your .17 HMR firearm. Renowned for its hot velocity and flat trajectory, the .17 Hornady Magnum Rimfire (HMR) is one of the most accurate rimfire cartridges on the market—and CCI makes one of the best versions of it.

With 50 rounds per box and available in bulk (40 boxes per case), the CCI 0055 is not only accurate but also affordable and accessible for high-volume shooters. Loaded with CCI’s legendary primers and clean-burning propellants, this 20-grain FMJ round delivers dependable performance whether you’re shooting off a bench or out in the field.

The CCI 0055 is designed specifically for target and varmint control. The bullet’s optimal size for penetration without over-expansion is the 20-grain full metal jacket (FMJ), and it is best used to:

•Ground squirrels

•Prairie dogs

•Crows and other nuisance birds

•Paper and steel targets

This shot is launched at a high muzzle velocity of 2,375 fps, providing an extremely flat trajectory and excellent accuracy downrange. When you need tight groups at 100 yards or speedy elimination of small varmints, employ this rimfire cartridge.

Having a muzzle velocity of 2,375 fps, this round is one of the fastest in its rimfire category. It offers:

• Flat trajectory

• Low wind drift

• pinpoint accuracy at ranges over 100 yards

FMJ design maintains the expansion in check, giving the bullet improved penetration and consistent performance, especially beneficial for:

• Varmint control where pass-through is preferred

• Pelt damage reduction

• Target practice with clean punch-through

CCI’s proprietary clean-burning propellants reduce fouling in your barrel, and the reliable rimfire primer ensures flawless ignition in a wide variety of rifles.

 Bulk-Friendly Packaging

•50 rounds per box

•40 boxes per case (2,000 rounds)

Perfect for avid shooters, instructors, or anyone needing high-volume rimfire ammo.

Real-world accuracy with the CCI 0055 .17 HMR FMJ is exceptional. Shooters regularly come back with sub-MOA groupings at 100 yards, especially with bolt-action rifles like the Savage 93R17 or Ruger Precision Rimfire. Ejection and feeding are smooth, even in picky semi-automatic platforms that complain about rimfire cartridges.

Due to the FMJ design, this cartridge penetrates with minimal deformation—ideal for steel shooting and paper target competition. It’s not for quick expansion, so best used on varmints or when over-penetration is not a consideration.

• Outstanding accuracy: Ideal for precise, long-range rimfire shooting.

• FMJ versatility: Minimal expansion makes it ideal for some applications of varmint control and range training.

• Clean shooting: Reduces barrel fouling so you can fire more between cleanings.

• Consistent ignition: Reliable CCI primers ignite consistently in any condition.

Whether a seasoned rimfire shooter or bringing yourself up to speed with the .17 HMR caliber, performance from this ammo is hard to match in its class.

This caliber is well-suited for target shooting and varmint control where deep penetration and low expansion are required (e.g., to safeguard hides or pelts).

Yes. CCI 0055 can be fired in all guns that are chambered in .17 HMR, including bolt-action, lever-action, and semi-automatic rifles.17HMR Ammo

It’s excellent for smaller varmints like ground squirrels or prairie dogs. But in the case of game that requires more terminal expansion, a hollow-point or polymer-tipped .17 HMR cartridge may be more effective.

How does the FMJ bullet affect performance?

FMJ bullets do not expand upon impact, which contributes to clean pass-through and consistent penetration. This can be beneficial in certain hunting and target applications. CCI 17HMR

No. Since it is a rimfire cartridge, the .17 HMR may not be reloaded. The priming compound is contained within the rim of the case and might not be recyclable when fired.

The CCI 0055 .17 HMR 20GR FMJ is the perfect choice for rimfire fans who need high velocity, precise shot placement, and rock-solid reliability. Whether you’re controlling pests, punching paper at 100 yards, or enjoying some high-speed plinking fun, this cartridge offers reliable performance—and the level of quality you demand from a trusted brand name like CCI.