17 HMR vs 22 WMR

17 HMR vs 22 WMR rifles at a shooting range against a tree

A side by side look at the 17 HMR vs 22 WMR cartridges. Which of these rimfire rounds is a better fit for your shooting needs? We can help!

Two cartridges that look vastly different. And yet they can be incredibly similar in pricing, performance, and purpose. The .22 Winchester Magnum Rimfire (WMR) and the .17 Hornady Magnum Rimfire (HMR) are two wallet-friendly cartridges that can be used for small game hunting, varmint control, and high-volume target shooting, among many other uses. So which way should you favor in the 17 HMR vs 22 WMR debate?

To choose the right cartridge for your needs, it helps to understand the main differences and ballistic performance of these versatile cartridges.

.17 HMR vs. .22 WMR: The Upfront Differences

.22 WMR.17 HMR
Bullet Diameter.224 inches.172 inches
Rim Diameter.294 inches.286 inches
Case Length1.055 inches1.058 inches
Total Length1.35 inches1.349 inches
Bullet Weight30 to 50 grains17 to 20 grain (Most are 17)


One of the top motivations for purchasing a rimfire rifle chambers with .22 WMR or .17 HMR is pricing. These are affordable rounds that allow shooters to spend a full day at the range without dropping hundreds of dollars. In fact, less than $20 should buy a day’s worth or cartridges.

When this article was written, the lowest per-round cost of the 22 WMR ammo was $0.34, while the .17 HMR could be purchased for $0.32 per shot*. These prices were on similar products by the same manufacturer, so it’s a fairly consistent comparison. The point is simple: .17 HMR may be slightly more affordable, but the difference is minimal. Shooters won’t pick one or the other based on price.

Size, Shape, and Bullet Weight Differences

17 HMR ammo vs 22 WMR ammo on a shooting bench
17 HMR ammo from Federal (left) sitting on a shooting bench next to Winchester 22 WMR ammo (right).

If you stand 22 WMR vs 17 HMR side-by-side, you’ll notice clear similarities and differences. They are both roughly the same length and have similar case diameters, which is no coincidence, as the .17 HMR was created by slimming down the neck of the .22 WMR.

The main difference is the bullet.

The bullet on .17 HMR ammo is much thinner and lighter. Most are only 17 grains, while most .22 Magnum rounds have 30-grain bullets and can go as large as 50 grains or more. So how do these size and shape differences play out at the range?

Let’s take a look at four pairs of comparable cartridges to find out how their performance matches up.

.17 HMR vs. .22 WMR: Cartridge Performance

Muzzle Velocity

AmmunitionMuzzle Velocity100 Yard Velocity
22 WMR - CCI 30 GR VNT Poly Tip2,200 fps1,571 fps
17 HMR - CCI 17 GR VNT Poly Tip2,650 fps1,986 fps
22 WMR - Hornady 30 GR V-MAX2,200 fps1,421 fps
17 HMR - Hornady 17 GR V-MAX2,250 fps1,901 fps
22 WMR - Winchester 30 GR Varmint HV2,250 fps1,490 fps
17 HMR - Winchester 17 GR Varmint HV2,550 fps1,901 fps
22 WMR - Federal 50 GR Varmint & Pred.1,530 fps1,197 fps
17 HMR - Federal 17 GR Varmint & Predator2,530 fps1,804 fps

Velocity makes a big difference in overall performance, and as you can see from the stats above, the .17 HMR is consistently the faster round. In all four comparisons, it had faster muzzle and 100-yard velocities. The only comparison that was close was the Hornady V-MAX rounds, which were only 50 fps apart in muzzle velocity. However, at 100 yards the .22 slowed to almost 1,400 fps, while the .17 maintained just over 1,900 fps.

As often happens, the heaviest bullet has the slowest speed. The heaviest bullet in our comparisons was a 50-grain .22 WMR round, which was also 700 fps slower than the next-slowest cartridge.

While there are close stats, it appears that the .17 HMR is going to be the consistent winner for velocity. The .22 WMR is certainly quick for a rimfire cartridge, but the .17 HMR, with a lighter round and (basically) just as much propellant, was designed for speed. It would appear the designers met their goal.

Velocity Winner: .17 HMR

Muzzle Energy

Testing 17 HMR velocity at a shooting range

AmmunitionMuzzle Energy100 Yard Energy
22 WMR - CCI 30 GR VNT Poly Tip322 ft-lbs164 ft-lbs
17 HMR - CCI 17 GR VNT Poly Tip265 ft-lbs149 ft-lbs
22 WMR - Hornady 30 GR V-MAX322 ft-lbs134 ft-lbs
17 HMR - Hornady 17 GR V-MAX245 ft-lbs136 ft-lbs
22 WMR - Winchester 30 GR Varmint HV337 ft-lbs148 ft-lbs
17 HMR - Winchester 17 GR Varmint HV245 ft-lbs136 ft-lbs
22 WMR - Federal 50 GR Varmint & Pred.260 ft-lbs159 ft-lbs
17 HMR - Federal 17 GR Varmint & Predator242 ft-lbs123 ft-lbs

While speed matters, shooters need to be aware of muzzle energy as well, especially if you are hunting with either cartridge. Energy impacts how deep a bullet penetrates, as well as mushrooming and energy delivery. The .22 WMR may be slower, but according to most statistics, it’s also more powerful.

One might expect the heavy 50-grain .22 WMR from Federal to have the top energy, but this was actually held by the .22 WMR 30-grain Winchester Varmint HV, which had a muzzle energy of 337 ft-lbs. However, the polymer-tipped .22 WMR from CCI had the best 100-yard energy with 164 ft-lbs.

There is a lot that can be pulled from the numbers, but basically we see that the .22 WMR hits with more energy, making it more effective against larger varmints and game animals.

Energy Winner: .22 WMR


Gauging the trajectory of a bullet is more difficult, largely because manufacturers provide differing stats. But there are a few we can consult.

When zeroed to 100 yards, the .22 WMR from Hornady (30 grain) drops 16.5 inches at 200 yards. Their .17 HMR, under the same conditions, only drops 8.5 inches. Using the same situation (zeroed to 100 yards), the .22 WMR from Winchester drops 14.9 inches, while the .17 HRM again drops 8.5 inches.

This supports the general reputation of the .17 HMR; it’s known for being a light yet incredibly accurate rimfire cartridge. The only concern is wind drift, as the smaller bullet is known to easily blow significantly off target if there is a strong breeze.

Trajectory Winner: .17 HMR

Choosing the .22 WMR or the .17 HMR

A revolver chambered for use with 22 magnum ammo
A snub nose revolver chambered to use 22 WMR ammunition.

With so much in common, making a choice can be tough. But if you think about your preferred uses, you can make the right decision. Either round will perform well when hunting small game and varmints, but if you expect to pursue larger predator animals like coyotes, the heavier, more-powerful .22 WMR may be preferred. However, if you expect to need the best accuracy possible, placing shots at 100 to 200 yards on small game, the .17 HMR is a fun, reliable, and effective cartridge.

Get Outstanding Prices on .22 WMR, .17 HMR, and All Rimfire

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