Browning Buck Mark vs Ruger Mark IV: The .22 Pistol Rivalry

Two of the most common .22 pistols on any firing line. One fixed its biggest headache in 2016; the other never had it. Here's how to choose.

Stand at the firing line of any bullseye league or club steel match and count the .22 pistols. There's a good chance two names come up again and again. One has a slab-sided aluminum frame and is named for Browning's Buckmark logo. The other has a tubular receiver that traces straight back to the first gun Bill Ruger ever sold. Both have been around for decades, and both have devoted followings.

This comparison uses the makers' published specs, documented model history and current retailer listings. It's an editorial reference, not a test, so it leaves out invented group sizes and focuses on what actually differs when you own one.

Where each pistol comes from

The Ruger Mark IV is the fourth generation of a design that started the company. The Ruger Standard went on sale in 1949 as Sturm, Ruger & Co.'s first product. The Mark II followed in 1982 with a last-round slide hold-open, then the Mark III in 2004 with a loaded-chamber indicator and a magazine disconnect. The Mark IV arrived in 2016 with the change everyone wanted: a hinged upper that lets the gun come apart with one button.

The Browning Buck Mark has been in production since 1985, when it replaced Browning's earlier Challenger and International .22 pistols. It uses a 7075 aluminum alloy frame and a ten-round magazine. By 2019 Browning listed 23 different Buck Mark models, from Camper and Hunter versions to Field Target, Contour and Black Label guns.

So both are mature designs with large model families. You aren't choosing one pistol. You're choosing a platform and then a model within it.

Head to head

Feature	Browning Buck Mark	Ruger Mark IV
In production since	1985	2016 (family since 1949)
Frame	7075 aluminum alloy	Steel, aluminum or polymer (22/45), depending on model
Grip feel	Slim, flat-sided; many grip options	Standard frame has a raked, Luger-like angle; 22/45 copies the 1911 angle
Magazine	10 rounds	10 rounds; drop-free release
Takedown	Removing screws with a hex key; see the owner's manual	One-button takedown; upper tips up off the grip frame
Optics	Many models have a full-length top rail	Many models drilled and tapped for a rail; some ship with one
Safety	Manual thumb safety	Ambidextrous manual safety
Known recall	None found in our sources	June 2017 safety recall on early units; see below

Two retail examples show how the top models are built. Ammunition Depot lists the Buck Mark Field Target with a heavy bull barrel, Pro Target adjustable sights, a full-length Picatinny rail and laminate grips. Its Mark IV Target listing shows a 5.5-inch bull barrel, a fixed front and adjustable rear sight, and a 10+1 capacity.

Takedown: the reason the Mark IV exists

Owners of the Mark II and Mark III have a running joke about reassembly. Getting the mainspring housing and hammer strut lined up could take patience and occasionally a YouTube video. The Mark IV fixed it. Press the takedown button at the rear of the grip frame and the upper receiver pivots up and off, and the bolt slides out of the back. Reassembly reverses the process.

The Buck Mark has never had that reputation. Field-stripping it means removing screws to lift the barrel and top rib off the frame, then sliding the slide out. Some owners worry about the rib and sight zero shifting when screws come out and go back in. That's one reason optic users sometimes clean the bore from the muzzle with a pull-through and leave the rib alone between deep cleans. Always follow the takedown order in your pistol's manual.

Before any takedown: remove the magazine, lock or pull the slide back, and look into the chamber and the magazine well. Both pistols are blowback .22s that fire a live round if one is chambered, magazine or no magazine, so don't assume a magazine disconnect makes the gun safe.

Grip, trigger and how they shoot

This is personal, but the design differences are real.

The Buck Mark's grip frame is a flat-sided aluminum slab, and Browning sells it with everything from slim target panels to rubber wraparound and laminate grips. It feels compact in the hand and points naturally for many shooters. Shooters who grew up on 1911s sometimes say it feels thin.

The standard Mark IV keeps the steep, raked grip of the original Ruger, which many people compare to a Luger. If you'd rather your .22 trainer felt like your carry pistol, the 22/45 versions copy the 1911 grip angle and use a polymer grip frame. That's why the 22/45 is a common choice for people who practice with a .22 and carry something bigger.

Trigger quality varies by model and production run on both. Target and competition variants get the most attention from the factory. Neither maker publishes a pull weight we could verify for every model, so check the model page or try one at the counter.

Ammo: what these pistols like

Both pistols are straight blowback. Like most .22 pistols, they usually run most reliably on round-nose high-velocity ammunition, and accuracy-minded shooters often prefer standard velocity in a pistol that cycles it. The practical picks:

For reliable practice: CCI Mini-Mag 40-grain round nose, a copper-plated high-velocity load that CCI rates at 1,235 fps.
For bullseye and accuracy work: CCI Standard Velocity 40-grain LRN, rated at 1,070 fps. Confirm your pistol locks back and feeds it before a match.
For volume: bulk packs like Federal Champion Training 40-grain. Test a box, since bulk lots vary.

If a pistol is picky, the cause is often a dirty chamber or a weak magazine spring rather than the gun's design. Our guide to ammo that cycles in .22 pistols and misfire diagnosis checklist go through it in order.

A note on the 2017 Mark IV recall

In June 2017 Ruger recalled Mark IV pistols over the manual safety. If the safety was left midway between safe and fire when the trigger was pulled, the gun could fire when the safety was then moved to fire. Affected serial numbers began with "WBR" (2016) or "401" (2017). If you're buying an early used Mark IV, check its serial number against Ruger's recall information or call Ruger to confirm the work was done.

Picking a model

Because both lines are big, the useful question is which model within the line.

Bullseye and slow-fire target

Mark IV Target or a Buck Mark target model with a heavy barrel and adjustable sights. Our Mark IV Target bullseye setup goes deeper. Skip ultra-light models for this; extra weight steadies the hold.

Small game and field carry

Mark IV Hunter (6.8-inch fluted bull barrel, fiber-optic front) or a Buck Mark Hunter or Camper. Skip if you need something light enough to carry all day.

Steel Challenge with a red dot

A railed Buck Mark like the Field Target or a Mark IV with an optic rail. Skip models that need extra parts to mount a dot.

Trainer for a 1911-style carry gun

Mark IV 22/45, for the matching grip angle. Skip it if you prefer the classic steel-frame feel.

To see what's stocked right now in both brands, browse Ammunition Depot's handgun category and filter for .22 LR.

The verdict

If easy cleaning is your priority, the Mark IV takes it. One-button takedown changed the reputation of the whole Ruger line. If you want a light, slim aluminum pistol with a top rail on many models and a wide choice of grips, the Buck Mark is the classic pick. Both have a long track record, and both reward good ammo and a clean chamber more than any brand loyalty. Handle both at a counter if you can. Grip feel tends to decide it in the first five seconds.

For more options beyond these two, see our .22 pistols by role roundup.

Editorial note: This is an independent editorial reference built from manufacturer information, retailer listings and published reporting. We have not performed hands-on testing of the products discussed, and nothing here is a performance promise. Verify specifications, compatibility and legality for your own situation.

Frequently asked questions

Is the Buck Mark or Mark IV easier to clean?

The Mark IV. Its one-button takedown lets the upper pivot off the grip frame without tools. The Buck Mark comes apart by removing screws with a hex key, which is not difficult but takes longer.

Was there a recall on the Ruger Mark IV?

Yes. In June 2017 Ruger recalled Mark IV pistols with serial numbers starting WBR or 401 over a safety issue that could let the gun fire when the safety was moved from a midway position. If you own or are buying one, confirm with Ruger that the recall work was done.

What is the difference between the Mark IV and the Mark IV 22/45?

The 22/45 uses a polymer grip frame with a grip angle copied from the 1911. Standard Mark IV frames keep Ruger's original raked, Luger-like angle.

How many rounds do the Buck Mark and Mark IV hold?

Both use 10-round magazines in .22 LR.

What ammo should I use in a Buck Mark or Mark IV?

Round-nose high-velocity loads such as CCI Mini-Mag are the reliable default. Standard-velocity target ammo often groups well, but confirm your pistol cycles it and locks back on empty before buying in quantity.

Sources and further reading

This independent educational article does not replace manufacturer instructions or legal guidance. Re-check sources before relying on time-sensitive details.