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.17 HM2 Ammo is an excellent choice due to its extremely high velocity. This caliber produces flat trajectories and superior medium-range accuracy, though the lightweight of the projectile makes it somewhat susceptible to crosswinds at a long-range.
The .17 Hornady Mach 2, or .17 HM2, is a rimfire cartridge introduced in 2004 by the ammunition manufacturer Hornady, following the successful launch in 2002 of the .17 HMR.
.17 HM2 is based on the .22 Long Rifle "Stinger" case, necked down to .17 caliber (4.5 mm), and using a bullet weighing less than half the weight of a typical .22 Long Rifle bullets.
About: .17 HM2
- Type: Rimfire
- Place of origin: United States
- Designer: Hornady
- Designed: 2004
- Manufacturer: CCI/Hornady/Eley
- Produced: 2004–Present
Specifications
- Parent case: .22 Long Rifle
- Bullet diameter: .172 in (4.4 mm)
- Neck diameter: .180 in (4.6 mm)
- Shoulder diameter: .226 in (5.7 mm)
- Base diameter: .226 in (5.7 mm)
- Rim diameter : .275 in (7.0 mm)
- Rim thickness: .043 in (1.1 mm)
- Case length: .714 in (18.1 mm)
- Overall length: 1.00 in (25 mm)
- Primer type: Rimfire
Ballistic performance
Bullet mass/type | Velocity | Energy |
---|---|---|
17gr(1g)V-Max | 2,100ft/s(640m/s)166 | ft⋅ lbf(225J) |