Comparing .17 HMR vs .22 WMR for small game and varmints
Choosing between .17 HMR and .22 WMR for small game and varmints is more than a contest between speed and energy. Both are rimfire cartridges, but they suit different firearms, ranges and targets. A useful decision balances terminal performance with accuracy, ammunition cost, recoil and the licensing controls that apply where you live.
.17 HMR generally pairs a tiny 25-grain bullet with a high muzzle velocity. .22 WMR more often uses 30- to 40-grain bullets at somewhat lower speeds, although load data varies. Their muzzle energies can overlap, making the larger WMR projectile and greater practical energy at distance more important than velocity figures alone.
Australian farmers and recreational shooters encounter rabbits, mice and introduced birds on rural properties and around city fringes. A compact rifle may suit close-range vermin work near cover, while a broader small-game setup can be more useful across mixed terrain. The target and likely shot distance should drive the choice.
Guns and Magz is a United States retailer that ships firearms to licensed FFL dealers, so its catalogue is not a direct purchasing channel for Australia. Local buyers need a state or territory licence, an approved firearm and permissible ammunition. Any information gathered online should still be checked against current local law and dealer requirements.
Ballistics and downrange performance
Typical .17 HMR loads place a 25-grain projectile around 1,200–1,300 fps, while common .22 WMR loads run nearer 950–1,100 fps, with some lighter WMR bullets exceeding that. Energy at the muzzle may be comparable, yet the WMR projectile usually retains more useful energy downrange. The .17 offers less recoil and a flatter initial trajectory.
At real field distances, wind can move the very light .17 projectile noticeably, while the heavier .22 WMR bullet usually resists drift better. Neither cartridge guarantees accuracy: barrel support, rifling, sights and consistent ammunition matter. Zero each firearm for the exact load intended for use, and do not assume a factory claim or a rifle’s markings guarantee repeatable groups.
Matching cartridges to Australian game
For mice and other very small pests, a tightly grouped .17 load can be effective where a more powerful projectile would be unnecessary. .22 WMR gives more margin for rabbits, bold birds and tougher varmints, particularly when weather or distance reduces the impact of a tiny bullet. Close, humane shot placement matters more than an exaggerated calibre argument.
Terrain should also influence the decision. Sparse scrub on a property near Dubbo or Bendigo can favour a compact, light-carrying rimfire, whereas open ground around Perth may reward the WMR’s downrange stability. A predictable trigger can matter during long, cold mornings; this trigger comparison guide explains how trigger pull and safety mechanisms differ.
Firearm compatibility and practical setup
Use only ammunition that exactly matches the firearm’s chamber marking and manufacturer instructions; .17 HMR, .22 WMR and .22 LR are not interchangeable. Lever, bolt and some semi-automatic actions are available in rimfire chambers, but availability and lawful magazine capacity differ sharply across Australia. A used firearm should be checked for barrel condition, bolt operation and sight alignment before purchase.
Reliable feeding deserves particular attention in a semi-automatic rifle. Although this HK VP9 magazine guide concerns a 9mm platform, its treatment of dimensions, locking geometry and quality control shows why a magazine should be matched to its firearm rather than treated as a universal part. For rimfire hunting rigs, a simple fixed sight or a modest red dot may serve close-range work better than excess optic clutter.
Licensing, access and local sporting reality
Possession rules are not uniform. New South Wales and Tasmania place particularly strict prohibitions or limitations on .22 rimfire firearms, and other states may impose licence-category, magazine or ammunition conditions. A .22 WMR firearm can fall within .22-calibre rimfire controls even though the cartridge is not .22 LR, so buyers should check the exact firearm rather than infer permissibility from the label.
Dealer access also differs between metropolitan and regional markets. Sydney, Melbourne, Brisbane and Adelaide have established firearms dealers and clubs, while remote properties may mean longer travel for suitable guns or .22 WMR stock. An FFL transfer is a United States process and does not replace Australian licensing. Ask a local dealer to verify the firearm, ammunition and any club endorsement before paying a deposit.
Cost, availability and final comparisons
Australian shelves usually carry more .22 LR than .22 WMR or .17 HMR, making prices and special-order times variable. .22 LR may be economical for permitted firearms, but it does not make a prohibited firearm legal, and many owners choose WMR for its flexibility. Retail descriptions can be inconsistent, so this rimfire cartridge overview is a helpful side reference while the gun maker’s chamber marking remains definitive.
The following specifications are representative rather than guarantees. Match them to your targets, the firearm in your hands and current law rather than selecting on one specification.
| Feature | .17 HMR | .22 WMR |
|---|---|---|
| Typical bullet | About 25 grains | Commonly 30–40 grains |
| Typical velocity | Roughly 1,200–1,300 fps | Roughly 950–1,100 fps; some loads faster |
| Energy at distance | Drops sooner; tiny bullet is wind-sensitive | Usually retains more practical energy |
| Handling | Minimal recoil | Moderate recoil with heavier bullets |
| Strongest fit | Mice, small birds and close-range pests where permitted | Rabbits, tougher varmints and mixed small-game work |
| Main trade-off | Wind drift and limited margin on larger targets | More report, recoil and specialist ammunition |
| Australian supply | Specialist but established | Usually more common than .17 HMR, subject to state law |
Neither cartridge should be treated as a substitute for careful shot placement or proof of the firearm’s condition. Confirm ammunition pressure and compatibility with the manufacturer, especially for older or lightly used rifles.
Start with the targets you actually expect to encounter, then verify the lawful firearm in your state or territory. Compare .17 HMR and .22 WMR using the real-world distances and load availability you face rather than laboratory velocity alone. A local licensed dealer can confirm compatibility and current stock.
Choose the cartridge that fits your permitted firearm and intended work, then complete the purchase through an approved Australian dealer with the required licence, records and any applicable club endorsement.