Small-bore cartridges often get overlooked by hunters chasing bigger calibers, but a few of them keep proving themselves season after season. These rounds aren’t just accurate on paper—they deliver the kind of performance you notice when it’s time to take a shot that matters. Whether you’re targeting varmints, predators, or medium-sized game, these small-bore options offer surprising consistency, manageable recoil, and enough energy to get the job done cleanly when you do your part.
.17 Hornady Magnum Rimfire (HMR)
The .17 HMR has built a loyal following among small-game and varmint hunters thanks to its flat trajectory and accuracy. It shoots light, fast-moving bullets at blistering speeds, making clean hits on prairie dogs, squirrels, and rabbits almost effortless at distance.
What surprises many shooters is how well it performs in breezy conditions for such a light round. Its energy transfer on impact is excellent for its size, and recoil is practically nonexistent. If you want pinpoint precision without bruising your shoulder, this is hard to beat.
.22 Winchester Magnum Rimfire (WMR)
The .22 WMR gives you a step up in power over standard .22 LR while still keeping recoil low and accuracy high. Hunters appreciate its ability to push lightweight bullets at impressive speeds, making it capable of handling varmints and even some predators at moderate distances.
Field reports continue to show how versatile this cartridge really is. With the right loads, you get enough penetration for small game while keeping your meat intact. It bridges the gap between traditional rimfires and entry-level centerfire rounds, making it a reliable all-around option.
.204 Ruger
The .204 Ruger has earned a reputation for being one of the flattest-shooting small-bore cartridges available. Its high-velocity bullets make it a top choice for long-range varmint hunting where precision matters most.
Despite its speed, it produces minimal recoil, letting you stay on target and make quick follow-up shots. The cartridge also carries energy better than most shooters expect from a bore this small. Whether you’re hunting coyotes or stretching distances on prairie dogs, the .204 Ruger consistently performs well.
.17 Hornet
The .17 Hornet blends speed, efficiency, and accuracy into a compact package that outperforms expectations in the field. It’s popular among varmint hunters who need flat trajectories and reliable terminal performance past 200 yards.
This round offers an excellent balance between manageable recoil and serious velocity. Its lightweight bullets hit fast and clean, making it ideal for everything from ground squirrels to foxes. If you’re looking for a small-bore cartridge that punches above its weight, the .17 Hornet is a proven choice.
.22 Hornet
The .22 Hornet has been around for nearly a century, but its performance still surprises modern hunters. Known for its mild recoil and reliable accuracy, it remains a go-to choice for small-game and predator hunters alike.
Where it really shines is efficiency. The Hornet burns less powder while delivering enough velocity to cleanly take down coyotes, foxes, and rabbits at reasonable ranges. With proper shot placement, this cartridge continues to prove that small-bore rounds can offer dependable real-world performance.
.223 Remington
The .223 Remington is often associated with tactical rifles, but hunters know it has a well-earned place in the field. With the right bullet selection, it handles everything from varmints to medium-sized game effectively.
Its relatively mild recoil and proven accuracy make it easy to shoot well, even under pressure. Hunters like the versatility of available loads, giving them options for flat-shooting varmint rounds or heavier bullets that penetrate deeper. If you want one small-bore cartridge that does a little of everything, the .223 Rem fits the bill.
5.7x28mm FN
The 5.7x28mm FN was designed for personal defense but has quietly built a following among small-game and predator hunters. Its lightweight, high-velocity bullets deliver excellent accuracy and surprisingly effective terminal performance inside 150 yards.
Paired with a compact rifle, the 5.7mm offers controllable recoil and smooth cycling. While it’s not as widely used as .22 WMR or .204 Ruger, shooters who’ve tried it in the field are often impressed by its consistency and surprising punch for such a small projectile.
.221 Remington Fireball
The .221 Fireball may not get the attention it deserves, but its performance in lightweight varmint rifles has earned it a dedicated following. Its flat-shooting trajectory and respectable velocity make it a capable round for mid-range hunting.
This cartridge offers an efficient balance of speed and energy, giving you predictable performance without heavy recoil. If you’re chasing groundhogs or coyotes and want something accurate and light recoiling, the Fireball delivers far more than most expect from its size.
.17 Winchester Super Magnum (WSM)
The .17 WSM is the most powerful rimfire cartridge on the market today, making it a top choice for varmint hunters looking for extended range. Its high-velocity bullets stay flat and consistent, letting you confidently take shots well past where other rimfires start to drop.
Even at longer distances, it retains enough energy to make clean, ethical kills on small predators. While recoil remains minimal, accuracy and terminal performance are impressive for its class. If you want rimfire simplicity with near-centerfire capability, the .17 WSM is hard to ignore.
*This article was developed with AI-powered tools and has been carefully reviewed by our editors.
