Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
The Hornady Varmint Express 17 HMR ammo with 20-grain XTP bullet addresses the rimfire varmint hunter’s need for consistent terminal performance at distances beyond 100 yards. Unlike conventional hollow points that fragment on impact or fail to expand at lower velocities, the XTP’s six-fold design divides the projectile into symmetrical sections, initiating controlled expansion across a wide velocity range while maintaining structural integrity for deep penetration. At 2375 fps from a 24-inch test barrel, this load delivers flat trajectory and 250 ft-lbs of muzzle energy — sufficient authority for prairie dogs, ground squirrels, and similar-sized predators where precise shot placement and minimal pelt damage matter.
Performance at a Glance
The swaged-core construction pairs with a drawn copper jacket to ensure uniform expansion and in-flight stability. Hornady manufactures this ammunition in the United States, applying the same quality-control protocols used across their centerfire rifle lines. The 20-grain XTP bullet achieves supersonic velocities throughout practical varmint ranges, minimizing wind drift and holdover calculations when engaging targets from 50 to 150 yards.
| Spec | Value |
|---|---|
| Caliber | 17 Hornady Magnum Rimfire (HMR) |
| Bullet weight | 20 grains |
| Bullet type | Jacketed Hollow Point (XTP) |
| Muzzle velocity | 2375 fps (24″ barrel) |
| Muzzle energy | 250 ft-lbs |
| Rounds/box | 50 |
| Velocity rating | Supersonic |
| Intended use | Hunting (varmint) |
| Lead-free | No |
| Manufacturer | Hornady (USA) |
This load ships as DOT-regulated ammunition and weighs 0.415 pounds per 50-round box. For shooters building a 17 HMR ammo inventory, the XTP’s controlled-expansion characteristics complement polymer-tipped loads by offering deeper penetration when quartering shots or heavier-bodied varmints are encountered.
Safe Handling & Compliance
Federal law requires purchasers to be at least 18 years old for rifle and shotgun ammunition, and at least 21 for handgun ammunition. Ammunition cannot be shipped to certain states, counties, and cities — review our ammunition shipping restrictions before ordering. Store ammunition in a cool, dry location away from heat sources and out of reach of unauthorized users.
- Treat every firearm as if it is loaded; keep your finger off the trigger until ready to shoot; never point the muzzle at anything you are not willing to destroy; be certain of your target and what lies beyond it.
- Verify that 17 HMR ammunition is legal to possess and use in your jurisdiction — some municipalities restrict rimfire hunting calibers or impose seasonal limitations.
- This ammunition contains lead. California Proposition 65 Warning: This product can expose you to lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling and avoid inhalation of combustion residue.
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