Savage B22 Magnum FV-SR 22 WMR 16.25in Threaded

Here’s the deal: the Savage B22 Magnum FV-SR 22 WMR 16.25in Threaded is a production rimfire bolt gun that punches way above its weight. Chambered in .22 WMR, it mates a heavy button-rifled barrel to Savage’s adjustable AccuTrigger and a synthetic stock with a high comb and vertical grip. If you want a suppressor-ready precision rimfire that doesn’t require a second mortgage, this is your rifle.

Manufacturer	Savage Arms
Model	B22 Magnum FV-SR
Material	Carbon steel barrel, synthetic stock, steel receiver (per manufacturer specs)
Compatibility	.22 WMR ammunition; accepts standard 1/2×28 threaded suppressors and muzzle devices
Finish	Matte black barrel and receiver, black synthetic stock
Weight	6.2 lbs (per manufacturer specs)
Condition	New

Key Features

• AccuTrigger: Adjustable from 2.5 to 6.0 lbs. Why it matters: you dial out creep and over-travel for a clean break at distance, which translates to tighter groups at 100 yards.
• Heavy Button-Rifled Barrel, 16.25 inches, Threaded 1/2×28: The shorter, heavy contour keeps harmonics consistent and is suppressor-ready right out of the box. Why it matters: less POI shift when you add a can, and the button rifling delivers sub-MOA potential with quality ammo.
• 10-Round Detachable Rotary Magazine: Steel-reinforced polymer with a center-feed design. Why it matters: reliable feeding without rim-lock, and the rotary design keeps the cartridge stack under control even with the high-pressure .22 WMR case.
• Ergonomic Synthetic Stock with High Comb and Vertical Grip: The comb height aligns your eye with a scope’s optical center; the vertical grip promotes a natural trigger finger position. Why it matters: consistent cheekweld equals consistent shot placement, especially shooting from a barricade or bipod.
• Drilled-and-Tapped Receiver: Accepts standard Weaver/Picatinny rail bases. Why it matters: no gunsmithing required to mount your preferred optic—just bolt on a rail and go.

Who It’s For

This rifle is for the shooter who wants to stretch a rimfire’s legs. If you’re dialing wind holds at 200 yards on prairie dogs, running a KYL rack at a local NRL22 match, or building a dedicated suppressor host for quiet pest control, the B22 Magnum FV-SR fits. It’s also a solid choice for the new precision shooter who wants a low-recoil platform to learn wind reading and positional shooting without burning centerfire barrel life.

Pros & Cons

• Pro: Adjustable AccuTrigger gives you a crisp break without a trip to the gunsmith.
• Pro: Threaded barrel is standard—no adapter needed for a suppressor.
• Pro: Rotary magazine eliminates rim-lock, a common issue with .22 WMR box mags.
• Con: The synthetic stock is functional but lacks the adjustability of a chassis or laminate stock; you’ll need to use scope rings or a cheek pad to dial in perfect eye relief for tall scope mounts.

Comparison

Feature	Savage B22 Magnum FV-SR	Ruger American Rimfire .22 WMR	CZ 457 Varmint .22 WMR
Barrel Length	16.25 in (threaded)	18 in (threaded)	16.5 in (threaded)
Trigger	AccuTrigger, adjustable 2.5-6.0 lbs	Ruger Marksman, adjustable 3-5 lbs	Single-set trigger, adjustable
Magazine Capacity	10 rounds (rotary)	9 rounds (rotary)	5 rounds (detachable box)
Stock	Synthetic, high comb, vertical grip	Synthetic, standard comb	Laminate, adjustable comb
Weight	6.2 lbs	6.5 lbs	7.4 lbs
Price	$370.18	$429.00	$579.00

FAQ

Is the barrel threaded for a suppressor?

Yes. The barrel is 16.25 inches long with a standard 1/2×28 thread pattern, ready for most .22-caliber suppressors and muzzle brakes.

What scope base does this rifle use?

The receiver is drilled and tapped for standard Weaver-style bases. You can install a Picatinny rail or two-piece bases without any drilling or tapping.

Can the AccuTrigger be adjusted without a gunsmith?

Yes. The AccuTrigger uses an internal adjustment screw accessed from the trigger housing. You can set pull weight between 2.5 and 6.0 lbs with a small hex key—no special tools required.

What is the effective range of this rifle with .22 WMR?

With quality ammunition, the B22 Magnum FV-SR is capable of consistent hits on a 4-inch target at 100 yards, and can reach out to 150-175 yards for varmint-sized targets depending on wind.

Ready to Build Your Precision Rimfire Setup

This rifle ships to your FFL in 1-2 business days. Add a rimfire rifle to your cart, then pair it with a rimfire scope and suppressor from our shop.

• ✓ Nationwide delivery (all 50 states)
• ✓ Ships 1-2 business days
• ✓ 30-day returns
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Last updated: April 2026