The main difference between 22 WMR and 22 LR is the cartridge case length, which allows the 22 WMR to hold substantially more gunpowder. Because of this larger powder charge, the 22 WMR achieves significantly higher muzzle velocities and generates roughly three times the kinetic energy of the 22 LR. This increased power translates to a flatter trajectory and a much longer effective range, making the 22 WMR superior for varmint hunting at distances up to 150 yards. Conversely, the 22 LR operates with minimal chamber pressure, resulting in an exceptionally quiet report and virtually non-existent recoil. These characteristics, combined with a drastically lower cost per round, cement the 22 LR as the optimal choice for high-volume target training and short-range small game hunting.
22 WMR vs 22 LR
| Feature | 22 WMR | 22 LR |
| Full Name | .22 Winchester Magnum Rimfire | .22 Long Rifle |
| Cartridge Type | Rimfire | Rimfire |
| Bullet Weight | 30 to 50 grains | 30 to 40 grains |
| Bullet Diameter | 0.224 inches | 0.223 to 0.2255 inches |
| Case Length | 1.055 inches | 0.613 inches |
| Overall Cartridge Length | 1.350 inches | 1.000 inches |
| Typical Muzzle Velocity | 1,530 to 2,200 fps | 1,070 to 1,640 fps |
| Typical Muzzle Energy | 300 to 324 ft-lbs | 100 to 191 ft-lbs |
| Effective Range | 100 to 150 yards | 50 to 100 yards |
| Recoil | Low | Extremely low |
| Ammunition Cost | $0.20 to $0.40 per round | $0.06 to $0.12 per round |
| Common Uses | Varmint hunting, predator control, longer-range targets | Plinking, training, short-range small game |
| Source | SAAMI / CCI Ammunition | SAAMI / Federal Premium |
The Main Difference Between 22 WMR And 22 LR
When comparing 22 WMR vs 22 LR, the most defining difference is the physical dimension of the cartridge. The 22 WMR case is significantly longer and slightly wider than the 22 LR case. This expanded internal capacity permits the 22 WMR to hold a larger powder charge. Because it contains more propellant, the 22 WMR drives a similarly sized projectile to much higher velocities.
This increase in speed directly yields superior kinetic energy, a flatter bullet trajectory, and an extended practical hunting range. While a 22 LR projectile experiences severe bullet drop beyond 75 yards, a 22 WMR bullet stays relatively flat and delivers lethal energy out to 125 or 150 yards. These performance gains require compromises. The 22 WMR generates a louder muzzle blast, creates slightly more recoil, and necessitates firearms engineered to contain higher chamber pressures. Ammunition cost is another primary differentiator, as 22 LR is typically a fraction of the cost of 22 WMR. Consequently, the 22 LR thrives in target shooting and close-range small game applications, while the 22 WMR excels in varmint hunting at extended distances.
22 WMR vs 22 LR Dimensions
Cartridge dimensions dictate powder capacity and chamber compatibility. Although both cartridges utilize a .22-caliber projectile, their brass cases are completely different in size. Comparable bullet diameters do not indicate that the cartridges are interchangeable.
Based on specifications published by the Sporting Arms and Ammunition Manufacturers’ Institute (SAAMI), the 22 WMR measures:
- Bullet diameter: 0.224 inches
- Case length: 1.055 inches
- Rim diameter: 0.294 inches
- Case diameter: 0.242 inches
- Overall cartridge length: 1.350 inches
The 22 LR measures:
- Bullet diameter: 0.223 to 0.2255 inches
- Case length: 0.613 inches
- Rim diameter: 0.278 inches
- Case diameter: 0.226 inches
- Overall cartridge length: 1.000 inches
The 22 WMR case is almost double the length of the 22 LR case. Additionally, the 22 WMR case is tangibly wider at 0.242 inches compared to the 0.226-inch case of the 22 LR. A 22 WMR cartridge will physically not fit into a standard 22 LR chamber.
22 WMR vs 22 LR Velocity
Velocity controls both trajectory and kinetic energy. The 22 WMR is fundamentally faster than the 22 LR because its longer casing accommodates more gunpowder. Standard 22 WMR factory ammunition typically achieves muzzle velocities between 1,530 and 2,200 feet per second (fps) from a rifle barrel. Standard 22 LR factory loads produce velocities ranging from 1,070 to 1,640 fps.
Comparing representative factory loads tested from 18 to 20-inch rifle barrels yields the following figures:
- Hornady V-MAX 22 WMR (30-grain polymer tip): 2,200 fps.
- CCI Maxi-Mag 22 WMR (40-grain total metal jacket): 1,875 fps.
- Federal AutoMatch 22 LR (40-grain lead round nose): 1,200 fps.
- CCI Standard Velocity 22 LR (40-grain lead round nose): 1,070 fps.
When comparing identically weighted 40-grain projectiles, the 22 WMR easily produces over 600 fps more muzzle velocity than high-velocity 22 LR ammunition.
22 WMR vs 22 LR Energy
Muzzle energy measures the striking force of the bullet, which is a critical metric for hunting applications. Energy relies on both bullet weight and velocity. Because the 22 WMR operates at significantly higher speeds, it produces much greater kinetic energy. However, energy alone should not be used as the sole measure of effectiveness, as bullet design heavily influences terminal performance.
Representative muzzle energy figures based on manufacturer specifications include:
- Hornady V-MAX 22 WMR (30-grain): 322 ft-lbs.
- CCI Maxi-Mag 22 WMR (40-grain): 312 ft-lbs.
- Federal AutoMatch 22 LR (40-grain): 128 ft-lbs.
- CCI Standard Velocity 22 LR (40-grain): 102 ft-lbs.
This energy gap drastically alters practical performance in the field. A 22 WMR delivers around three times the muzzle energy of a standard 22 LR. At 100 yards, a 22 WMR bullet frequently retains more kinetic energy than a 22 LR bullet produces at the muzzle. This characteristic makes the 22 WMR highly effective for anchoring resilient varmints like groundhogs and coyotes.
22 WMR vs 22 LR Range
When evaluating 22 WMR vs 22 LR range, shooters must clearly differentiate practical range, effective range, and maximum projectile travel. Maximum projectile travel denotes the absolute distance the bullet can fly if launched at an optimal upward angle. Both of these rimfire projectiles can travel over a mile under ideal circumstances, requiring a safe and reliable backstop for every shot. Maximum projectile travel is never equivalent to an effective shooting range.
Effective range specifies the maximum distance at which a bullet retains sufficient accuracy, velocity, and energy to ethically dispatch game. For the 22 LR, the effective hunting range maxes out around 50 to 75 yards on thin-skinned small game. Target shooters routinely push the 22 LR out to 100 yards, though the bullet experiences severe drop at that distance.
The 22 WMR retains functional velocity and striking energy much further downrange. Because it exits the muzzle at a higher speed, gravity has less time to pull the bullet downward over a given distance. A shooter can zero a 22 WMR rifle at 100 yards and effectively strike targets or varmints out to 150 yards with minimal holdover.
22 WMR vs 22 LR Accuracy
Accuracy relies more on the quality of the firearm and the consistency of the ammunition than on the specific cartridge chambering. Neither the 22 WMR nor the 22 LR is universally more accurate than the other.
In documented independent testing, the 22 LR frequently produces tighter groups simply due to the existence of highly specialized, match-grade ammunition. Brands like Eley and Lapua manufacture extreme-precision 22 LR loads designed specifically for Olympic and benchrest competitions. Fired from a premium bolt-action rifle, this ammunition can routinely stack five shots into groups measuring under 0.5 inches at 50 yards.
The 22 WMR is primarily produced as a field hunting cartridge rather than a competition target round. Independent tests generally show 22 WMR rifles delivering 1.0 to 1.5-inch groups at 100 yards utilizing quality factory ammunition. Ultimately, the mechanical quality of the rifle barrel and the manufacturing tolerances of the ammunition dictate accuracy far more than the choice between 22 WMR or 22 LR ballistics.
22 WMR vs 22 LR Recoil
Both of these cartridges are celebrated for their exceptionally light recoil, but a practical difference does exist. Cartridge energy and the overall weight of the firearm dictate the perceived recoil impulse.
When discharged from a standard 6-pound rifle, a 22 LR produces approximately 0.2 foot-pounds of free recoil energy. A 22 WMR fired from a similar rifle generates about 0.6 foot-pounds. While the 22 WMR mathematically produces three times the recoil force of the 22 LR, the actual sensation felt by the shooter remains incredibly mild. Both cartridges generate less than one foot-pound of recoil in a long gun, making them entirely comfortable for shooters of all ages and sizes. In lightweight revolvers and pistols, the 22 WMR will exhibit noticeably more muzzle flip and a significantly louder report.
22 WMR vs 22 LR Ammunition Cost
Ammunition cost heavily favors the 22 LR, which remains the most affordable factory ammunition available worldwide. Current retail prices determine how often a shooter can practice without financial strain. Normal retail pricing should be clearly distinguished from temporary clearance sales or bulk-purchase discounts.
As of September 2026, representative retail prices for common factory loads indicate:
- Federal AutoMatch 22 LR (40-grain, 325-round box): $19.50 to $26.00 per box, equating to $0.06 to $0.08 per round.
- CCI Standard Velocity 22 LR (40-grain, 50-round box): $4.50 to $6.00 per box, equating to $0.09 to $0.12 per round.
- CCI Maxi-Mag 22 WMR (40-grain, 50-round box): $13.00 to $18.00 per box, equating to $0.26 to $0.36 per round.
- Hornady V-MAX 22 WMR (30-grain, 50-round box): $16.00 to $20.00 per box, equating to $0.32 to $0.40 per round.
Practicing with a 22 WMR typically costs three to four times as much per trigger pull as practicing with a 22 LR.
22 WMR vs 22 LR For Hunting
Hunting highlights the most practical differences between 22 WMR and 22 LR ballistics. The 22 LR serves as a phenomenal small game cartridge for harvesting squirrels, rabbits, and similar animals. At distances inside 50 yards, a standard 40-grain solid bullet or a 36-grain hollow point will cleanly anchor small game without ruining edible meat.
The 22 WMR provides a clear practical advantage over the 22 LR when targeting resilient varmints and predators, including coyotes, foxes, and prairie dogs. The elevated velocity ensures that specialized polymer-tipped bullets and jacketed hollow points expand violently upon impact. Furthermore, the 22 WMR allows hunters to ethically take shots at 100 to 150 yards, which is a distance where the 22 LR lacks both the required flat trajectory and the necessary terminal energy. Hunters must always consult local regulations, as certain states restrict rimfire calibers for specific types of game.
22 WMR vs 22 LR For Target Shooting
For plinking, skills training, and recreational target shooting, the 22 LR is unmatched. The combination of practically zero recoil, low noise, and incredibly inexpensive ammunition makes it the ideal choice for high-volume range sessions. Formal competitive shooting disciplines, including Rimfire Benchrest and NRL22, are structured entirely around the 22 LR cartridge due to the wide availability of match-grade ammunition.
The 22 WMR is less ideal for high-volume target shooting because the ammunition is simply too expensive. While ringing steel targets at 100 yards with a 22 WMR is highly enjoyable, the cost per round adds up very quickly. Target shooters who specifically want to ring steel at 200 yards or beyond usually bypass the 22 WMR entirely and adopt a centerfire cartridge like the .223 Remington.
22 WMR vs 22 LR For Beginners
For new shooters, the 22 LR stands as the absolute best choice. The complete absence of recoil and the very mild report prevent inexperienced shooters from developing a flinch response. A beginner can dedicate hours to mastering sight alignment, breathing, and trigger control without physical fatigue or heavy financial costs. Additionally, 22 LR rifles are highly affordable and available in every conceivable action type.
The 22 WMR is perfectly safe for a novice to fire, as its recoil is still very light. However, the sharper muzzle blast can intimidate a brand new shooter, and the elevated cost of ammunition actively discourages the frequent practice necessary to build solid marksmanship habits. The most practical recommendation is to learn the fundamentals on a 22 LR platform and purchase a 22 WMR later if the individual specifically needs a dedicated varmint hunting rifle.
22 WMR vs 22 LR Firearms
Firearm manufacturers support both cartridges with a vast array of platforms. For the 22 LR, consumers can select from bolt-action rifles, semi-automatic rifles, lever-action rifles, pump-action rifles, single-action revolvers, double-action revolvers, and semi-automatic pistols. Legendary models like the Ruger 10/22 and the Browning SA-22 ensure the 22 LR market remains massive.
Firearms chambered for the 22 WMR heavily feature bolt-action rifles (including models from Savage Arms, Ruger, and CZ), lever-action rifles (such as the Henry Classic), and various single-action revolvers. There are notably fewer semi-automatic rifles and pistols chambered in 22 WMR because the longer case length and higher operating pressures complicate the engineering required for a reliable blowback action.
Can 22 WMR And 22 LR Use The Same Gun?
No, standard 22 WMR and 22 LR cartridges cannot safely be fired from the same gun chamber. The chamber dimensions specified for each cartridge are completely incompatible.
The singular exception to this rule involves manufacturer-approved convertible firearms. Certain revolvers, specifically the Ruger Single-Six and the Heritage Rough Rider, are sold by the factory as convertible models. These revolvers utilize a single barrel but include two entirely separate cylinders. One cylinder is precisely machined to chamber only the 22 LR, while the secondary cylinder is machined to chamber only the 22 WMR. To change calibers, the shooter must manually remove and replace the cylinder. You cannot load a 22 WMR cartridge into the 22 LR cylinder, and you should never load a 22 LR into the 22 WMR cylinder.
22 WMR vs 22 LR Ammunition Compatibility
Ammunition compatibility is strictly determined by the exact cartridge name stamped on the barrel of the firearm.
- .22 WMR is not generally interchangeable with .22 LR.
- .22 LR is not generally interchangeable with .22 WMR.
If a shooter attempts to insert a 22 WMR into a standard 22 LR chamber, the bolt will not close because the cartridge is too wide and too long. If a shooter drops a 22 LR into a 22 WMR chamber, it will drop in but fit very loosely. Firing a 22 LR inside a 22 WMR chamber is highly dangerous. The excessive space allows the thin brass casing of the 22 LR to split open upon firing. This rupture can vent high-pressure gases and burning powder back toward the shooter, potentially ruining the firearm and causing severe physical injury.
Pros And Cons
22 WMR Pros And Cons
Pros:
- Higher velocity provides a flatter trajectory over distance.
- Greater kinetic energy ensures reliable terminal performance on game.
- Extended practical range makes it highly effective for varmint hunting.
- Utilizes sturdier jacketed and polymer-tipped projectiles.Cons:
- Ammunition costs significantly more per round.
- Produces a louder report and slightly more recoil.
- Limited availability of reliable semi-automatic firearms.
22 LR Pros And Cons
Pros:
- Low ammunition cost enables affordable high-volume practice.
- Massive availability of firearms and ammunition worldwide.
- Extremely quiet operation and negligible recoil.
- Abundant availability of extreme-precision match ammunition.Cons:
- Lower velocity and energy limit terminal performance.
- Severe bullet drop limits effective hunting range.
Manufacturer Data vs Independent Testing
When reviewing ballistics, readers must understand the difference between promotional manufacturer specifications and independent chronograph testing. Ammunition manufacturers typically measure velocity using specialized 24-inch laboratory test barrels. These extended barrels yield higher speeds than a consumer will achieve using a standard 16 or 18-inch field rifle.
Independent chronograph testing provides a highly realistic baseline for actual field performance. When reputable firearms publications test factory ammunition, the recorded velocities are frequently 50 to 100 fps slower than the figures printed on the retail box. Likewise, ballistic calculator estimates utilize mathematical formulas based on standard atmospheric conditions, which can differ notably from user-submitted reports recorded in varying temperatures or altitudes. When reputable sources provide conflicting figures, controlled independent testing through a standard consumer firearm represents the most practical data source.
FAQs
What is the main difference between 22 WMR and 22 LR?
The main difference is the physical length and width of the case. The 22 WMR case holds more gunpowder, which allows it to fire a bullet much faster and deliver significantly more energy than the 22 LR.
Is 22 WMR more powerful than 22 LR?
Yes. The 22 WMR generates approximately three times the kinetic energy of a standard 22 LR at the muzzle, making it vastly more powerful on impact.
Is 22 WMR faster than 22 LR?
Yes. The 22 WMR routinely achieves muzzle velocities between 1,800 and 2,200 feet per second, whereas most 22 LR ammunition operates between 1,070 and 1,260 feet per second.
Which has more range, 22 WMR or 22 LR?
The 22 WMR has a substantially longer effective range. While the 22 LR is excellent inside of 75 yards, the 22 WMR maintains sufficient velocity and energy to hunt varmints effectively out to 150 yards.
Which is more accurate, 22 WMR or 22 LR?
Mechanically, both cartridges are accurate. However, because highly specialized match-grade ammunition is widely produced for the 22 LR, it is the standard choice for extreme precision target shooting.
Which has less recoil?
The 22 LR has less recoil, though the recoil generated by both cartridges is so minimal that most shooters cannot perceive the difference when firing a full-sized rifle.
Which is cheaper to shoot?
The 22 LR is considerably cheaper. It typically costs between 6 and 12 cents per round, while the 22 WMR typically costs between 25 and 40 cents per round.
Is 22 WMR better for hunting?
It depends entirely on the size of the game. For small animals like squirrels where preserving edible meat is important, the 22 LR is preferred. For larger, tougher varmints at longer distances, the 22 WMR is vastly superior.
Can a 22 WMR shoot 22 LR?
No. A 22 LR cartridge is narrower than a 22 WMR chamber. Firing it will cause the brass case to expand excessively or rupture, which is extremely dangerous to the shooter and the firearm.
Can a 22 LR shoot 22 WMR?
No. A 22 WMR cartridge is too long and too wide to physically fit into a 22 LR chamber.
Are 22 WMR and 22 LR interchangeable?
No. The ammunition is never interchangeable. You must only load the specific ammunition that is stamped on the barrel of your firearm.
Which is better for beginners?
The 22 LR is the best choice for beginners. The low noise, lack of recoil, and highly affordable ammunition allow a new shooter to practice fundamental marksmanship skills comfortably and frequently.