Walther WMP Review: This .22 Magnum Shoots Tiny Groups

Estimated reading time: 11 minutes

After more than 250 rounds, the optics-ready Walther WMP proved accurate, comfortable, and ridiculously fun. Its 15+1 capacity, .40-inch best group, and surprising .22 WMR energy make this full-sized rimfire far more than a casual plinker.

Walther WMP Review: A .22 Magnum Built for More

Introduced in 1959, the .22 Winchester Magnum Round, or .22 WMR, was and still remains a useful round for small game hunting, rodent control, and plinking. The round has also seen a resurgence in new offerings that include self-defense options.

And while it wouldn’t be my first choice for home and self-defense, a pistol chambered in .22 WMR could well be a threat-stopper in the hands of a capable shooter.

Walther Arms has introduced a pistol that can do all of the above: the Walther WMP, a full-sized, semi-automatic featuring a polymer frame, an ambidextrous slide catch, and an accessory rail under the barrel. It also boasts an impressive 15+1 ammunition capacity.

I recently put over 250 rounds through a new WMP and came away knowing it was a fine handgun, very accurate, comfortable in hand, and a real pleasure to shoot.

Walther WMP Features: Optics-Ready and Built to Roam

I was so taken with the pistol, I wanted to purchase the WMP instead of sending it back to Walther. But with our current “build it back better” economic program in place, I felt the smarter move was to hold onto my cash for our upcoming, or current, recession.

The WMP came standard with a slide cut for an optic, plus two optic adapter plates. One plate was for a Trijicon RMR. The other adapter fits optics with the Docter footprint, including the Vortex Viper.

I removed the optics-ready cover, mounted my personal RMR onto the Walther WMP, and headed to my outdoor range.

First Look: How Walther Built the Magnum Pistol

Walther WMP Accuracy Test: Tiny Groups in Bitter Cold

I zeroed the RMR at approximately 12 yards from a rest, using Super X Small Game and Varmint rounds from Winchester firing a 40-grain bullet.

The first shots were very low and to the left, but the RMR’s precise controls moved my shots up and onto the bullseye in under ten rounds.

I began my accuracy test shooting from the rest at 12 yards, and then at seven yards offhand. I first used the Super X ammunition and then added two other .22 WMR loads: Punch, a self-defense option from Federal Premium launching a 45-grain jacketed hollow point; and Remington Magnum Rimfire loaded with a 40-grain jacketed hollow point.

The Walther WMP’s accuracy was nothing short of phenomenal.

12-Yard Results: The WMP Drills a .40-Inch Cluster

Using a rest and at 12 yards, my absolute best five-shot groups were done with the Winchester rounds, which pegged a .40- and a .50-inch cluster.

The other two rounds shot very worthy groups too, including 1.0-inch groups from both the Punch and Remington loads.

Seven-Yard Offhand Groups Stay Tight

At seven yards and firing offhand, five-shot groups of mine scored:

• .90 inches with the Winchester Small Game and Varmint rounds;
• .94 inches shooting the Remington Magnum Rimfire;
• 1.1 inches with Federal’s Punch self-defense.

Of note, I was wearing several layers of clothing, and while the February day was sunny, the air temperature was 14 degrees, with a breeze quartering up from my right and back.

I didn’t use gloves, figuring they would affect accuracy, and had to warm my hands several times with trips back to my vehicle.

25-Yard Accuracy: Varmint-Ready Performance

A few days later, I stretched the Walther WMP accuracy test to 25 yards.

At this distance, the Punch loads made five-shot groups of 1.8-, 1.6, and 1.0 inches. Remington .22 WMR pegged five shots at 1.0- and 1.1-inches and a six-shot group at 1.2-inches, while the Winchester .22 WMR scored a four-shot group at 1.1-inches and five-shot groups at 1.5- and 2.0-inches.

I was impressed. Especially as the 25-yard shooting was done on another cold Wisconsin day, 28 degrees and a ten-mile-per-hour wind making it feel like 18 degrees.

Can the Walther WMP Reach 50 Yards?

I knew I had to try the Walther WMP at 50 yards. The pistol was up to the task, though I clearly needed more practice at this distance.

But I made enough three-shot groups at 2.0-inches and slightly under with both the Remington and Winchester ammunition to know the WMP can take on a coyote at half a football field.

Grip and Recoil: Easy Control Without the Cheese Grater

The pistol’s grip texture wasn’t noticeably aggressive, but it was more than adequate, especially given the minimal recoil of the .22 WMR.

The full-sized grip gave me plenty of pistol to hold onto, while the combination of low recoil and useful texturing made it easy to keep the sights settled and drive the WMP through repeated shots.

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Walther Quad Release: Four Ways to Drop a Magazine

The WMP features the Walther Quad Release mechanism, which the company terms “the most versatile ambidextrous mag release ever created.”

The statement may well be correct, as the magazine can be released not only by standard ambi-release buttons on either side of the frame but also by paddle-style releases located on both sides of the trigger guard’s flat bottom.

All four release points worked fine, though I wasn’t sure what potential problem is solved by this Quad Release system.

15-Round Magazines Load Without a Thumb Workout

The WMP is sold with two 15-round magazines that feature loading tabs; the mags are very easy to load up. For jurisdictions where applicable, the WMP is also available with 10-round magazines.

Not interested in optics? The pistol’s standard open sights are quite functional and combine a serrated rear notch sight with a red fiber optic front post.

Three Passive Safeties Work Behind the Trigger

The WMP sports three automatic or passive safety features. First is the Trigger Safety Blade, which requires proper finger placement on the trigger to depress the blade and allow the trigger to engage.

Second, the WMP is built with a trigger disconnect. This disconnects the trigger from the firing assembly while cycling to ensure no accidental discharges happen while cycling or when the pistol is out of battery.

Last, the pistol sports a hammer block/drop safety that keeps the hammer from moving forward and striking the firing pin if it is dropped.

Is the Walther WMP Viable for Self-Defense?

Certainly, the WMP is very small game and varmint ready at closer distances, and it will be a lot of fun for the recreational shooter. But are it and the .22 WMR viable for self-defense?

The fact is, plenty of people use handguns chambered in .22 LR for concealed carry and home defense. If that’s what a person is comfortable with and can shoot accurately, it’s not my place to tell him or her otherwise.

And I do not have exact numbers, but I am sure the .22 LR has stopped its share of muggings, rapes, and murders.

But if I had to choose between the .22 LR and the .22 WMR for self-defense? It would most definitely be the .22 WMR, with the Walther WMP topping my list of handgun platforms.

.22 WMR vs. .22 LR: The Chronograph Shows the Difference

My Caldwell G2 Chronograph from Brownells, paired with the handy Caldwell app on my Apple phone, provided the basic explanation of why I’d choose the .22 WMR over the .22 LR.

I shot the Federal self-defense Punch loads in both calibers, ten rounds of each, plus Winchester’s .22 LR self-defense Silvertip offering. For the .22 LR rounds, I used my Browning Buck Mark Plus Vision UFX with a 5-7/8ths-inch barrel.

Then, I plugged these numbers into the handy online ballistic calculator, ShootersCalculator.com.

Federal Punch .22 WMR Delivers a Clear Energy Advantage

Not surprisingly, the heavier WMR bullets, traveling faster, generated more energy than the .22 LR counterparts.

The Punch .22 WMR left the WMP’s muzzle at 1,326 feet-per-second (fps), with the initial energy rated at 176 foot-pounds (ft-lbs.). At five and ten yards, the .22 WMR Punch delivered 171 ft-lbs. and 166 ft-lbs., respectively.

Meanwhile, the Punch in .22 LR with its 29-grain bullet left the barrel of my Browning Buck Mark at 1,313 fps, for 111 ft-lbs. of energy at the muzzle, 106 ft-lbs. at five yards and 101 ft-lbs. at ten yards.

The 37-grain Winchester Silvertip .22 LR bullet launched itself at 1,117 fps for 103 ft-lbs. at the muzzle, 99 ft-lbs. at five yards and 96 ft-lbs. at ten yards.

Obviously, the .22 WMR Punch hits noticeably harder at self-defense distances than either of the two .22 LR options.

.22 WMR Punch Gets Surprisingly Close to .380 AUTO

What I found somewhat surprising was how close the Punch rounds in .22 WMR and .380 AUTO were energy-wise.

Federal rated the .380 Punch at 1,000 fps at the muzzle from a 3.75-inch barrel and pushing an 85-grain bullet. Energy? 180 ft-lbs. at the muzzle, 184 at five yards, and 180 at ten yards.

All of those numbers were more than the .22 WMR Punch numbers, but not by much!

Final Verdict: One Rimfire Pistol, Several Serious Jobs

The Walther WMP review started with plinking and accuracy, but the pistol kept showing that it could cover more ground. Its combination of 15+1 capacity, low recoil, practical controls, excellent accuracy, and optics-ready versatility gives it real value as a recreational pistol, hunting sidearm, and possible defensive option.

I hope to field test the Walther WMP soon on small game, coyotes, and maybe even a bobcat. I’m very interested to see what this accurate pistol can do as a hunting sidearm, and hope to report on that testing at a later date.

Walther WMP Pros and Cons: Accurate, Capable, and Quirky

• Pros: Phenomenal accuracy, 15+1 capacity, minimal recoil, comfortable full-sized grip, optics-ready slide, two included adapter plates, two easy-loading magazines, functional open sights, ambidextrous controls, and credible small-game and varmint capability.
• Cons: The Quad Release may solve a problem some shooters never had, the full-sized format is less discreet than compact defensive pistols, and .22 WMR would not be the author’s first home-defense choice.

Walther WMP .22 WMR Specifications

Model	Walther Magnum Pistol or WMP
Model Number	5220300
Caliber	.22 WMR
Capacity	15+1
Barrel	Steel, 4.5”
Slide Material	Aluminum
Frame Material	Polymer
Sights	Fiber Optic Front, Serrated Rear
Length	8.2”
Height	5.66”
Width	1.48”
Weight (w/Empty Magazine)	27.8 oz.
Optics Ready?	Yes; 2 Adapter Plates Inc.
Safety	Integrated Trigger Safety
Mags Included	Two (2), 15-Round Mags
MSRP	$549.00

Manufacturer: Walther Arms

Related Reads from GunsAmerica Digest

• Say Hello to the Walther Magnum Pistol, or WMP
• Walther Arms’ Newest Plinker: The WMP in .22 WMR
• Walther’s American Pistols

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