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CCI, .17 HMR, JHP, 17 Grain, 500 Rounds

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Product Highlights

  • Key Specifications
    Item Number: 78844
    Caliber: .17 HMR
    Bullet Weight: 17 gr.
    Bullet Type: Jacketed hollow point
    Muzzle Velocity: 2,550 FPS
    Muzzle Energy: 245 ft.-lbs.
    Mfg. Number: 0053
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Left: 17 HMR,
Right: 22 WMR

The .17 HMR round is similar to rounds developed by dedicated rimfire wildcatters who worked to create a rimfire cartridge with an exceptionally flat trajectory. These wildcatters were seeking to match the ballistics of the obsolete 5mm Remington Rimfire Magnum, which was made from 1970 to 1974, and was to that point the fastest rimfire cartridge ever produced.With 5 mm diameter barrels and bullets being virtually unavailable at the time (the 5mm RMR was the last commercial 5 mm round until the 2004 release of the centerfire .204 Ruger), the commercially available .17 caliber became their bullet of choice. The .22 Winchester Magnum Rimfire was the logical parent case, rather than 5mm RMR (with its unique case head size, which requires a significantly different bolt and magazine), because it was commonly available, and it is a far larger and stronger case than the next largest, the .22 Long Rifle. The .17 caliber wildcats not only met, but far exceeded the 5mm RMR’s velocities and flat trajectory. The accuracy of these cartridges was also quite good. However, the downrange energy of the 5mm RMR is superior to both .22 WMR and .17 HMR, so there is still potential in the 5mm rimfire for wildcatters.

Hornady, in conjunction with Marlin Firearms and Sturm, Ruger & Co. (manufacturers in the rimfire rifle market), followed much the same path. With the .22 WMR case as the starting point, a simple barrel change was sufficient for most .22 WMR firearms to chamber the new cartridge. In 2002, the first rifles and ammunition began appearing on the market. While the ammunition was relatively expensive due to the high-performance .17 caliber bullets used, it was still cheaper than most centerfire ammunition. By 2004, CCIFederal Cartridge and Remington had each introduced .17 HMR ammunition offerings

Availability for the CCI, .17 HMR, JHP, 17 Grain, 500 Rounds

A .17 HMR round with a ballistic tip (left) compared with a .22 Long Rifle round (right)

Cartridges for .17 HMR come with bullets that weigh 15.5 grains (1.00 g), 17 grains (1.1 g), and 20 grains (1.3 g), and come in designs such as plastic-tipped bulletshollow pointssoft points, and FMJs. The terminal ballistics of the lightweight expanding bullets limit the .17 HMR o small game animals and varmints. .17 HMR ammunition is less common and more expensive than the .22 caliber rimfire rounds, but this is changing as the popularity of .17 HMR rifles gathers momentum.

A case of .17 HMR rounds with hollow points

A growing number of companies offer .17 HMR ammunition. CCI Ammunition loads all of the .17 HMR ammunition for the CCI, Federal CartridgeHornady, and Remington brands. However, the ammunition is loaded with different bullets to different specifications. Ammunition is also available from Winchester, PMC and Sellier & Bellot.

Examples of bolt-action or lever-action rifles that are chambered for (or have variants chambered for) .17 HMR include Armscor M1700CZ 452Ruger Model 96Savage 93Marlin 917 and Steyr Zephyr II.

Citing safety concerns about the round’s use in semi-automatic firearms, Remington issued a product safety warning and recall notice