Published: October 2025 | Last updated: May 2026
Disclaimer: Load data referenced in this article is drawn from published reloading manuals. Always begin 10 percent below the listed maximum charge and work up incrementally while watching for pressure signs. Never substitute data between powders of different burn rates without consulting a current manual.
The 17 Hornet and 22 Hornet share the same parent case, the same rimmed geometry, and the same heritage – the classic Hornet action platform that has been chambering small-bore varmint cartridges since the 1920s. What they do not share is operating philosophy. The 22 Hornet is a century-old design optimized for gentle pressures, broad forgiveness, and consistent performance with a moderate handicap. The 17 Hornet is a 21st-century development that takes that same humble case, necks it down to .172 inches, and forces it to perform at nearly 50 percent higher pressure to wring out speeds that the original designers never imagined.
Neither is strictly better. They solve different problems. The 17 Hornet is the flat-shooting precision tool for open-country varmint work where distance is measured in hundreds of yards and trajectory matters on small targets. The 22 Hornet is the gentler, more forgiving option that works in more rifles, offers better energy retention downrange, and handles wind with more authority. Understanding which problem applies to your terrain and your targets is the real comparison here.
For individual cartridge guides, see the 22 Hornet complete guide and the 22 Hornet ballistics reference. For context on related cartridges in the .17 and .22 varmint family, the 22 WMR vs 17 HMR comparison covers the rimfire equivalents.
Cartridge Specifications at a Glance
| Specification | 17 Hornet | 22 Hornet |
|---|---|---|
| Introduced | 2012 (Hornady) | 1920s / commercial 1930 |
| Parent case | 22 Hornet (necked down) | Original design |
| Bullet diameter | .172 inch | .224 inch |
| Case length | 1.349 in | 1.403 in |
| Overall length | 1.723 in | 1.723 in |
| SAAMI max pressure | 62,000 psi | 47,000 CUP |
| Typical bullet weights | 15.5-25 gr | 35-55 gr |
| Typical MV range | 3,650-3,870 fps | 2,650-3,100 fps |
| Rim type | Rimmed | Rimmed |
| Barrel twist (typical) | 1:9 | 1:16 |
| Action length | Short / single-shot | Short / single-shot |
The matching overall length is important: both cartridges fit the same action, and rifles chambered for the 22 Hornet are often re-barreled to 17 Hornet without other changes. The pressure difference, however, is the defining number. The 17 Hornet operates at 62,000 psi – the same ceiling as the 308 Winchester – while the 22 Hornet barely exceeds half that figure. Those pressure levels require different levels of attention during load development.
The barrel twist difference matters for handloaders who rebarrel. The 22 Hornet’s 35-55 grain bullets stabilize well in a 1:16 twist. The 17 Hornet’s longer, lighter .172-inch bullets require the faster 1:9 twist. Using a 22 Hornet barrel with a 17 Hornet reamer is not an option – you need the appropriate twist for whichever cartridge you intend to shoot.
Velocity and Trajectory
This is the 17 Hornet’s clearest advantage, and the numbers make it visible.
Trajectory comparison, 100-yard zero, 59°F, sea level, 1.5-inch sight height:
| Range | 17 Hornet 20gr @ 3,650 fps | 22 Hornet 45gr @ 2,665 fps |
|---|---|---|
| 50 yds | +0.5 in | +0.6 in |
| 100 yds | 0 | 0 |
| 150 yds | -1.4 in | -3.0 in |
| 200 yds | -4.8 in | -9.8 in |
| 250 yds | -11.2 in | -22.4 in |
| 300 yds | -21.5 in | -42.8 in |
At 150 yards, the trajectory gap is 1.6 inches – enough to miss a ground squirrel if you hold center on a 22 Hornet zero without adjusting. At 250 yards, the gap has grown to over 11 inches. A prairie dog at 250 yards presents a 4-inch vital zone. With the 22 Hornet, you need to know your holdover precisely at that distance. With the 17 Hornet, a center-mass hold puts you close enough to connect in most conditions.
This trajectory advantage is what drives 17 Hornet sales. For hunters who sit over dog towns or walk prairie country where shots routinely reach 200 to 300 yards, the 17 Hornet’s flat arc reduces the mental arithmetic required for every shot. The 22 Hornet is a 200-yard varmint cartridge for most shooters. The 17 Hornet extends that practical ceiling to 275 to 300 yards without holdover calculation.
Energy Retention
Here the comparison reverses – and this surprises some shooters who assume faster always means more energy.
| Range | 17 Hornet 20gr (ft-lbs) | 22 Hornet 45gr (ft-lbs) |
|---|---|---|
| Muzzle | 592 | 710 |
| 100 yds | 370 | 474 |
| 200 yds | 218 | 298 |
| 300 yds | 122 | 177 |
The 22 Hornet carries more energy at every distance despite its lower muzzle velocity. This is sectional density at work: a 45-grain .224-inch bullet has significantly higher sectional density than a 20-grain .172-inch bullet, which means it retains velocity – and therefore energy – more efficiently as it decelerates through the air. The 17 Hornet’s tiny 20-grain bullet starts fast but bleeds energy rapidly.
For varmints and small predators this energy gap is mostly academic. A 20-grain bullet arriving at 3,000+ fps at 150 yards vaporizes a ground squirrel. Energy numbers on paper do not capture the terminal violence of a .172-inch bullet at those velocities. But for coyotes, where penetration depth matters and a clean, decisive kill is the ethical standard, the 22 Hornet’s heavier bullets with better sectional density produce more reliable terminal performance – particularly at angles that require the bullet to travel through more tissue.
Wind Drift
Wind is the 17 Hornet’s most significant practical liability.
| Range | 17 Hornet 20gr (10 mph full-value) | 22 Hornet 45gr (10 mph full-value) |
|---|---|---|
| 100 yds | 0.9 in | 0.7 in |
| 150 yds | 1.8 in | 1.5 in |
| 200 yds | 3.5 in | 2.8 in |
| 250 yds | 5.9 in | 4.5 in |
| 300 yds | 9.5 in | 7.2 in |
At 200 yards in a 10 mph crosswind, the 17 Hornet drifts 3.5 inches and the 22 Hornet drifts 2.8 inches. For a ground squirrel with a 2-inch vital zone, that difference matters. At 300 yards in a 10 mph wind, the 17 Hornet is off by 9.5 inches – enough to miss a prairie dog cleanly if the wind is not precisely read and compensated.
The 22 Hornet’s heavier, larger-diameter bullets hold their velocity and resist lateral deflection more effectively past 150 yards. In calm conditions the 17 Hornet is the superior precision tool. In open plains with the gusty, variable crosswinds that define the best prairie dog habitat, that advantage can disappear. An experienced wind reader will still favor the 17 Hornet for its flatter trajectory even in wind, because the compensation is predictable. A newer varmint hunter may find the 22 Hornet’s wind performance more forgiving.
Recoil
Both cartridges are essentially recoil-free by any practical standard. The 17 Hornet in a 7-pound rifle produces approximately 1 to 1.5 ft-lbs of free recoil. The 22 Hornet produces perhaps 2 ft-lbs. Neither produces enough impulse to disturb sight picture or cause flinching in any shooter. This is one category where the comparison is entirely irrelevant – either cartridge can be shot comfortably all day from any field position.
Rifle Platforms and Availability
The 22 Hornet has a century of commercial rifle production behind it. Vintage Winchesters, Savages, and early Ruger bolt guns exist in the used market at reasonable prices. Many collectors maintain these rifles in excellent condition. The broader production history also means more gunsmith familiarity and wider parts availability. For single-shot action fans, the 22 Hornet has been chambered in virtually every break-action and falling-block design produced since the 1930s.
The 17 Hornet, introduced in 2012, is a modern rifle proposition. The Ruger 77/17, Savage 25, and a limited number of custom and semi-custom options cover the production landscape. Used rifles are available but the market is smaller and prices reflect the cartridge’s more recent introduction. The upside is that all 17 Hornet factory rifles were built with the cartridge’s 62,000 psi pressure in mind from the start – there are no 1940s actions of unknown provenance to worry about.
Action suitability note: Some vintage 22 Hornet rifles – particularly pre-war and wartime production – were built to standards that assumed lower pressure loads with older powders. Before loading to modern maximums in a vintage rifle, verify the action strength through a qualified gunsmith.
Accuracy Potential
Both cartridges can deliver excellent practical accuracy for varmint work – sub-MOA performance is achievable from quality barrels with developed handloads in both chamberings. The factors that most affect accuracy are similar: consistent primer ignition, precise charge weights, and uniform case neck tension.
The 17 Hornet’s higher pressure and smaller case volume make it more sensitive to charge weight variation. A 0.2-grain error in a large rifle cartridge is negligible. In the 17 Hornet it can produce meaningful velocity spread and point-of-impact shift. Methodical reloaders who use quality scales and consistent technique regularly achieve exceptional accuracy. Casual loaders who approximate charges will see more variation.
The 22 Hornet’s lower pressure makes it more forgiving of small loading errors, but it introduces its own consistency challenge: thin-walled brass. 22 Hornet cases are notably thin at the neck and body walls compared to modern cartridges, and variation in neck thickness between cases – and sometimes within a single lot – can affect neck tension consistency and therefore accuracy. Sorting by neck thickness or weight, and using consistent sizing technique, pays dividends.
Barrel Life
Both cartridges are extremely gentle on barrels. The 22 Hornet’s 47,000 CUP ceiling and small powder charge produce minimal throat erosion – a well-maintained 22 Hornet barrel can deliver accurate groups for tens of thousands of rounds with normal care. Even rodent hunters who fire hundreds of rounds per session rarely see significant barrel wear.
The 17 Hornet, at 62,000 psi with a small bore, produces more heat and pressure per shot than the 22 Hornet. Barrel life is notably shorter – 3,000 to 5,000 rounds is a reasonable expectation for precision accuracy, with usable hunting accuracy lasting longer. For serious prairie dog shooters who fire 500+ rounds per day, the 17 Hornet’s barrel life deserves consideration. For the hunter who fires 50 to 100 rounds per season, neither cartridge will wear out a barrel in a lifetime.
Reloading: Key Differences
Both cartridges use small rifle primers and share several powder options, but their loading characteristics differ in ways that matter.
22 Hornet – the thin brass challenge: The 22 Hornet’s most significant reloading challenge is case consistency. The thin, tapered walls require careful attention to:
- Neck thickness uniformity: Variation between cases causes inconsistent neck tension, which directly affects accuracy. Checking with a ball micrometer and sorting by thickness improves results.
- Sizing technique: Over-aggressive full-length sizing can buckle thin-walled 22 Hornet brass. Neck sizing only (for bolt guns returning cases to the same chamber) extends case life and preserves accuracy. Use a quality expander ball with a slight taper to prevent work-hardening the neck.
- Crimp: Not required for most bolt-action applications, but important for single-shots where violent closing can set bullets deeper.
17 Hornet – the precision pressure challenge: The 17 Hornet’s 62,000 psi ceiling demands:
- Precise charge weights: The relationship between powder charge and pressure is steep. A quality scale reading to 0.1-grain increments is important. A powder measure set and verified with a digital scale for every session is the appropriate workflow.
- Consistent seating depth: Seating depth variation in a small-bore, high-pressure cartridge produces measurable velocity variation. A quality micrometer seating die and consistent technique are worth the investment.
- Pressure signs: Know what to look for – flattened primers, sticky bolt lift, and case head expansion are the primary indicators. Do not skip the 10-percent-below-max starting point.
| Aspect | 17 Hornet | 22 Hornet |
|---|---|---|
| SAAMI max pressure | 62,000 psi | 47,000 CUP |
| Case volume | ~13 gr H2O | ~14 gr H2O |
| Bullet diameter | .172 inch | .224 inch |
| Primer type | Small rifle | Small rifle |
| Load sensitivity | High – 0.2 gr can matter | Moderate |
| Case challenge | Less so | Thin walls, neck variation |
| Barrel life (accurate) | 3,000-5,000 rds | 10,000+ rds |
| Bullet selection | Limited | Broader |
| Best application | Open-country precision | Versatile close-moderate range |
Primers:
| Primer | Type | Notes |
|---|---|---|
| CCI 400 | Small Rifle | Standard for both – reliable ignition, widely available |
| CCI BR-4 | Small Rifle Bench Rest | Best SD in precision work for both cartridges |
| Federal 205 | Small Rifle | Softer cup – verify firing pin compatibility |
| Federal GM205M | Small Rifle Match | Premium choice for 17 Hornet precision development |
| Remington 7-1/2 | Small Rifle Bench Rest | Popular for accurate 22 Hornet loads |
| Winchester WSR | Small Rifle | Consistent ignition, broad availability |
For both cartridges, consistent primer selection within a development session matters more than which specific primer is chosen. Do not mix primer lots mid-session.
Powders:
The 17 Hornet and 22 Hornet share several effective powder choices despite their different pressure ceilings, because both operate in the fast-to-medium burn rate range appropriate for small cases.
| Powder | 17 Hornet | 22 Hornet | Notes |
|---|---|---|---|
| Hodgdon LilGun | ✓ Primary | ✓ Excellent | The top choice for 17 Hornet; also excellent in 22 Hornet |
| Hodgdon H110 | ✓ Very good | ✓ Very good | Consistent velocity, fills case well |
| Winchester 296 | ✓ Very good | ✓ Good | Similar burn rate to H110 |
| IMR 4198 | ✓ Good | ✓ Primary | The classic 22 Hornet powder, long established |
| Hodgdon H4198 | ✓ Good | ✓ Very good | Temperature stable; popular 22 Hornet choice |
| Hodgdon CFE BLK | ✓ Good | ✓ Good | Copper fouling reducer; consistent |
| Alliant Reloder 7 | Good | ✓ Very good | Long 22 Hornet history |
| Accurate 1680 | ✓ Good | ✓ Good | Small-case specialist; works in both |
LilGun is the standout choice for the 17 Hornet – it was specifically mentioned by Hornady engineers during the cartridge’s development and appears at or near the top of most published 17 Hornet data. For the 22 Hornet, IMR 4198 and H4198 are the historical standards, with LilGun and H110 offering more modern alternatives with better temperature stability.
Bullet selection:
The 22 Hornet’s wider bore accepts the full range of .224-inch varmint bullets from 35 to 55 grains, giving handloaders broad component selection. The 17 Hornet’s .172-inch bore limits choices to a smaller pool:
| Cartridge | Available bullets | Weight range |
|---|---|---|
| 22 Hornet | Hornady V-MAX, Hornady NTX, Sierra BlitzKing, Nosler Varmageddon, cast lead | 35-55 gr |
| 17 Hornet | Hornady 15.5gr NTX, Hornady 20gr V-MAX, Hornady 25gr HP, Berger 25gr | 15.5-25 gr |
The 22 Hornet’s broader selection is a practical advantage for handloaders who want to tailor terminal performance – a 35-grain hollow point for ground squirrels, a 55-grain SP for coyotes, or cast lead for economical plinking.
Hunting Applications: Where Each Shines
Choose the 17 Hornet if:
- You primarily shoot prairie dogs, ground squirrels, or similar small varmints at 150 to 300 yards
- Open terrain is your primary environment and flat trajectory reduces the holdover calculation
- You are building or buying a modern production rifle and barrel life of 3,000+ rounds is acceptable
- You prefer explosive terminal performance on the smallest targets
- Calm conditions or light winds are typical for your hunting grounds
Choose the 22 Hornet if:
- You hunt in variable or gusty crosswind conditions where heavier bullets hold course better
- Coyotes or larger predators are in your target list, where more energy and better penetration matter
- You value rifle heritage and the option to shoot quality vintage platforms
- Longer barrel life is a priority for high-volume shooting
- Your shots stay inside 200 yards where the 22 Hornet’s trajectory is entirely manageable
- You want broader bullet selection for different applications
For broader context on the varmint cartridge family, see the small game caliber guide.
Recommended Loads
17 Hornet – starting points (verify in current manuals):
- 20gr Hornady V-MAX + LilGun – the most documented combination; excellent accuracy potential
- 25gr Hornady HP + H110 – heavier bullet, better wind resistance and energy retention
22 Hornet – starting points (verify in current manuals):
- 40gr Hornady V-MAX + IMR 4198 – classic, accurate, widely documented
- 45gr Sierra BlitzKing + LilGun – flat trajectory and explosive varmint performance
- 55gr Hornady V-MAX + H4198 – heavier option for coyotes, more energy downrange
FAQ
Is the 17 Hornet accurate enough for prairie dogs at 300 yards?
Yes, in calm to light-wind conditions with developed handloads. The 17 Hornet’s trajectory at 300 yards demands a holdover of approximately 20 inches from a 100-yard zero, but that is a fixed, known number that an experienced shooter dials or memorizes. The limiting factor at 300 yards is more often wind than trajectory – the 17 Hornet’s light bullets are pushed noticeably by a 10 mph crosswind at that range.
Can the 22 Hornet take coyotes reliably?
Yes, inside 150 yards with appropriate bullet selection. A 45 to 55-grain expanding bullet at 22 Hornet velocities produces sufficient energy and penetration for clean coyote kills inside that distance. Beyond 150 yards, energy retention falls to levels where shot placement becomes increasingly critical. For regular coyote hunting past 150 yards, a higher-energy cartridge like the 223 Remington provides more margin.
Can I shoot 17 Hornet in a 22 Hornet rifle?
No. The bore diameters are different (.172 inch vs .224 inch) and the operating pressures are very different. A 17 Hornet case in a 22 Hornet chamber would produce an unsafe condition. These are separate, incompatible cartridges despite sharing the same parent case.
Which produces less noise?
The 22 Hornet is noticeably quieter, primarily because of its lower muzzle velocity and pressure. At 2,665 fps, the 22 Hornet produces less muzzle blast than the 17 Hornet at 3,650 fps. Neither is suppressor-optimized at these velocities, but the 22 Hornet is noticeably more pleasant in terms of muzzle concussion. With a suppressor, both can be reduced to very manageable levels.
Why does the 22 Hornet have more energy despite being slower?
Sectional density and bullet weight. Kinetic energy is calculated as one-half mass times velocity squared. A 45-grain .224-inch bullet has roughly 2.25 times the mass of a 20-grain .172-inch bullet. Even though the 17 Hornet bullet is moving 37 percent faster, the mass advantage of the 22 Hornet bullet produces more total energy. The heavier bullet also retains that energy more efficiently downrange because of its higher sectional density.
What is the practical effect of 22 Hornet’s thin brass during sizing?
The main effect is inconsistent neck tension if cases are not sorted or handled carefully. Thin necks compress and spring back differently from case to case, which varies the force required to seat a bullet and affects how consistently the bullet releases on firing. This translates to velocity variation and point-of-impact scatter. The fix is: use a quality neck-sizing die with a properly fitted expander, sort cases by weight or neck wall thickness, and avoid over-sizing. Full-length sizing is rarely necessary in a single-bolt-gun application and accelerates case work-hardening.
Which is better for someone new to varmint hunting?
The 22 Hornet is the more forgiving starting point. Its lower pressure ceiling reduces the consequences of minor loading errors, its broader bullet selection makes component sourcing easier, and its wind performance is somewhat more intuitive for shooters who are still developing wind-reading skills. The 17 Hornet rewards methodical technique and delivers its advantages most fully to experienced shooters who already know how to develop loads precisely and read wind reliably.
Disclaimer: All ballistic data is based on published factory and reloading reference sources. Real-world performance varies by barrel length, rifle condition, and atmospheric conditions. Always verify handloading data in current reloading manuals from Hodgdon, Hornady, or Sierra. Never exceed published maximum charges.
Editorial note: Originally published October 2025, revised May 2026. This revision added a wind drift comparison table, expanded the reloading section with powder-specific guidance and a detailed comparison table, added barrel life data (3,000-5,000 rounds for 17 Hornet vs 10,000+ for 22 Hornet), restructured around the Choose X if / Choose Y if decision framework, and added a FAQ section.
