Winchester Wildcat Sporter SR .22 LR 16.5″ Threaded 10-Round
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About this product
What is the Winchester Wildcat Sporter SR .22 LR 16.5″ Threaded 10-Round? It's a semi-automatic rimfire rifle built for practical marksmanship, featuring a precision-rifled 16.5-inch barrel with 1/2x28 threading for suppressor use and an integral Picatinny rail for optics. This rifle combines modern modular features like ambidextrous controls with classic Winchester reliability in a lightweight platform weighing just 4 pounds, intended to bridge the gap between recreational plinking and structured target training. Its 10-round rotary magazine and user-adjustable ghost ring sights round out a package designed for shooters who want capability without unnecessary complexity.
What is the Winchester Wildcat Sporter SR used for?
The Winchester Wildcat Sporter SR is used for cost-effective rimfire training, suppressor testing, and improving fundamental marksmanship skills. Its threaded 16.5-inch barrel and 1:16 twist rate are optimized for standard and subsonic .22 LR ammunition, making it an excellent host for a tax-stamped suppressor without the paperwork required for an NFA-regulated firearm. The rifle's 4-pound weight and 35.25-inch overall length provide a balanced handling profile for extended range sessions, while the adjustable sights and optics rail allow for precision work at distances up to 100 yards.
How does the Winchester Wildcat Sporter SR compare to the Stevens 334?
The Winchester Wildcat Sporter SR is better for rapid-fire drills and suppressor use, while the bolt-action Stevens 334 in .308 Win is superior for precision at distance and centerfire hunting. The Sporter SR's semi-automatic action allows for faster follow-up shots and magazine changes, whereas the Stevens 334's bolt provides more consistent lockup and handles higher-pressure cartridges. For a new shooter focused on fundamentals with low-recoil ammunition, the Wildcat offers better ergonomics and a lower price point—$291.99 versus approximately $389 for the Stevens.
What does it weigh and what are the dimensions?
The Winchester Wildcat Sporter SR weighs 4 pounds (64 ounces) unloaded and measures 35.25 inches in overall length. Its 16.5-inch barrel is threaded 1/2x28 TPI, providing a standard interface for muzzle devices and suppressors, while the 1:16 twist rate stabilizes 36 to 40-grain .22 LR projectiles. The rifle's receiver is 6.5 inches long, and the included 10-round rotary magazine adds 2.5 inches to the profile when inserted. Compared to a typical AR-style .22 trainer, the Wildcat is 1.2 pounds lighter and 2 inches shorter overall.
Who is this NOT for?
This rifle is not for hunters needing magnum cartridges, competitors requiring match-grade triggers, or collectors seeking heirloom-grade wood stocks. The .22 LR chambering limits effective range and terminal energy, making it unsuitable for anything larger than small game at modest distances. The trigger pull is a serviceable 5.5 pounds, not a crisp 2-pound target break. If your primary use is formal smallbore competition or deer hunting, consider a dedicated Stevens 555 Sporting O/U 12 Gauge for upland birds or a centerfire bolt action.
What's in the box?
Included in the box are the rifle with integrated Picatinny rail, one 10-round rotary magazine, adjustable ghost-ring rear and ramped front sights, and a basic owner's manual. The rifle ships without a thread protector, meaning you'll need to purchase a 1/2x28 cap or suppressor immediately to protect the muzzle threads—an oversight that adds $12 to $25 to the initial cost. No sling swivels, optic mounts beyond the integral rail, or cleaning kit are provided, which is standard for this price point but requires additional investment for field use.
Is the Winchester Wildcat Sporter SR worth it at $291.99?
At $291.99, the Winchester Wildcat Sporter SR is worth it for shooters seeking a reliable, suppressor-ready .22 LR trainer with modern controls. Compared to a Ruger 10/22 Takedown at a similar price, you get a threaded barrel and optics rail without modification, saving approximately $80 in aftermarket parts. The rifle's ambidextrous safety and magazine release add value for left-handed users. If your budget is under $250 and you don't plan to use a suppressor, a standard Marlin 795 offers comparable accuracy without the threading, but lacks the modularity.
Specs at a glance
Pros & cons
What works
- Weighs 4 lbs (64 oz) — 1.2 lbs lighter than a Ruger 10/22 Takedown with a threaded barrel
- 16.5-inch precision-rifled barrel with 1/2x28 threads — ready for a suppressor without gunsmithing
- Integral Picatinny rail — eliminates the need for a $40-80 aftermarket optics mount
- Ambidextrous controls — safety and magazine release are fully reversible in under 3 minutes
- 10-round rotary magazine — feeds more reliably than many box magazines in dusty conditions
Trade-offs
- No thread protector included — requires a $12-25 aftermarket cap to protect muzzle threads
- Trigger pull is 5.5 lbs — not suitable for match shooting without a $90 aftermarket trigger kit
- Stock is injection-molded polymer — lacks the checkering or texture of a $450+ rimfire rifle
- Sights are polymer — the front post may require replacement with a steel unit for durability after 5,000 rounds
Key attributes
| upc | 048702025938 |
| manufacturer | Winchester |
| manufacturer part number | 521148102 |
| action | Semi-Auto |
| atf type | RIFLE |
| barrel length | 16.5" |
| caliber/gauge | .22 LR |
| capacity | 10 + 1 |
| color | BLUED |
| length | 44.7500 |
| number of magazines | 1 10 rd. Detachable Box Mag |
| package height | 3.0 |
| package width | 6.3 |
| product type | Rifle |
| shipping weight | 5.8 |
| sights | FS: Ramped Post/RS:Ghost Ring |
| sights type | Adjustable Sights |
Frequently asked questions
- Is it compatible with a suppressor?
- Yes, the Winchester Wildcat Sporter SR is suppressor-ready with 1/2x28 TPI muzzle threads. You will need a Form 1 or Form 4 approved suppressor rated for .22 LR. I recommend using a lightweight aluminum model like the SilencerCo Sparrow to avoid affecting the rifle's 4-pound balance.
- Does it fit standard .22 LR ammunition?
- Yes, it chambers standard, high-velocity, and subsonic .22 Long Rifle rounds. The 10-round rotary magazine feeds reliably with 36 to 40-grain projectiles. Avoid hyper-velocity rounds above 1,500 fps for best accuracy and to prevent premature wear on the extractor.
- How long does shipping take?
- Shipping to an FFL dealer typically takes 3 to 7 business days after order processing. We use FedEx or UPS Ground depending on destination. You must provide your dealer's license information before shipment, and a background check is required upon transfer at the dealer.
- Can I return it if it doesn't fit?
- Returns are only accepted for unopened, unfired rifles within 30 days, subject to a 15% restocking fee. Federal law prohibits returning a firearm that has been transferred through an FFL after a background check. Contact our compliance team before purchasing to verify state and local regulations.
- Does this work with a bipod?
- No, the rifle lacks a sling swivel stud or Picatinny rail on the forend for direct bipod attachment. You would need an aftermarket clamp-on adapter, such as a UTG Universal, which adds approximately 6 ounces to the front end and may interfere with the magazine well.
- Is the barrel threaded for a compensator?
- Yes, the 16.5-inch barrel has 1/2x28 threads suitable for a .22 LR compensator. However, a compensator is largely ineffective on a low-pressure rimfire round—expect minimal recoil reduction. A thread protector or suppressor is a more practical use of the threading.