Video Review: Smith & Wesson M&P 22 Magnum Series Pistol

This rimfire semi-auto pistol chambers a rifle round, creating a "mini mighty magnum" that's tons of fun to shoot.

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posted on August 27, 2025
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"Go big or go home"? Smith & Wesson says that's not always the way, and has proven it with its recent release of the M&P 22 Magnum pistol. Notes American Rifleman Senior Executive Editor Kelly Young, "For many years, Smith & Wesson's line of double-stack Military & Police pistols has covered the bases of all the major self-defense cartridges. Your 9mm [Lugers], your .40 Smith & Wessons, .45 ACPs, 10mm Autos, and they actually even had a couple .357 SIGs there for a while.

"But in 2023, the company started thinking smaller, moving instead into a pair of two light-recoiling .22-cal. designs. First came the M&P 5.7 chambered in FN's 5.7x28, but later in the year came this guy, the M&P 22 Magnum chambered in the much more economical and easier to find .22 Winchester Magnum rimfire."

Yes, this handgun is chambered in a rifle round, .22 Winchester Magnum. And as such, it develops a touch more report than you'd expect from a pistol round. "And it really is just a blast to shoot on the range," says Young. "And I mean that literally. Not only is this gun a ton of fun to shoot, but given that this is a rifle cartridge being shot through a handgun, there's a ton of flash. Big fireball and boy, is this puppy loud!" 

That said, the gun's semi-automatic action and weight combine to create a recoil-free experience. What's more, the magazine has a 30-round capacity that's perfect for long range sessions. The fact that it's fully ambidextrous makes shooting hassle-free even for lefties, and its relatively long, slim grip means that those of us with smaller hands will find the gun easy to control. 

In this great video from our friends at American Rifleman, S&W's mini mighty magnum gets put through its paces on the range and in the shop. For more, visit Smith-Wesson.com.

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