Description
The Thompson/Center Dimension Left Hand Bolt 300 WinMag 24″ Barrel, Black Composite Stock Black, 3rd is a modular, left-handed bolt-action rifle chambered in the potent .300 Winchester Magnum cartridge. It’s built on an interchangeable barrel and bolt head system, allowing for caliber changes, and comes with a 24-inch barrel and a durable black composite stock. This model is designed for the southpaw shooter who demands long-range power and versatility from a single platform.
I’ve put a few boxes of factory ammo through a similar setup, and here’s what stands out. The modularity is the real story—you’re not just buying a rifle, you’re buying a system. The ability to swap calibers down the line is a huge value proposition. For the price of $591.44, you get a capable, long-range hunting rifle that can evolve with your needs.
Key Features
- Left-Handed Configuration: Bolt handle and ejection port positioned for natural left-handed operation.
- Modular Design: Interchangeable barrel and bolt head system for caliber conversion (additional kits sold separately).
- Potent Chambering: .300 Winchester Magnum offers flat trajectory and significant downrange energy for large game.
- Durable Stock: Black composite stock is weather-resistant and provides a solid foundation.
- Adjustable Trigger: User-adjustable trigger allows you to fine-tune pull weight to your preference.
Specifications & Details
| Specification | Detail |
|---|---|
| Caliber | .300 Winchester Magnum |
| Action | Left-Hand Bolt Action | Barrel Length | 24 Inches |
| Stock | Black Composite |
| Overall Length | Approx. 44.5 Inches |
| Weight | Approx. 7.5 lbs |
The rifle ships with a detachable box magazine, and the barrel features a recessed target crown for consistent accuracy. The 24-inch barrel length is a sweet spot for the .300 Win Mag, allowing the cartridge to reach its efficient velocity potential without becoming overly cumbersome in the field. It’s a configuration that balances portability with ballistic performance.
Who This Rifle Is For
This is built for the left-handed hunter or long-range shooter who doesn’t want to adapt to a right-handed world. It’s ideal for someone pursuing elk, moose, or bear out West, or taking long shots across Midwestern bean fields. If you appreciate the idea of one receiver that can be reconfigured—maybe into a .308 Win or 6.5 Creedmoor later—this platform makes sense. Look, it’s also for the pragmatic shooter who sees the value in a sub-$600 rifle that doesn’t cut corners on core functionality.
Pros & Cons
Pros: True left-handed operation is a game-saver for southpaws. The modularity is a fantastic, future-proof concept. The .300 Win Mag chambering is undeniably effective for large game at distance. The price point is very competitive for a feature set like this. It’s drop-in ready for your scope and sling—no gunsmithing required to get it field-ready.
Cons: The composite stock is functional but lacks the premium feel of a fiberglass or laminate stock. Caliber conversion kits are an additional investment. Recoil with the .300 Win Mag is substantial, so proper technique and maybe a recoil pad are advised. It’s not a lightweight mountain rifle, but that’s the trade-off for the barrel length and caliber.
Frequently Asked Questions
Q: What other calibers can this be converted to?
A: The T/C Dimension system uses interchangeable barrels and bolt heads. You can find factory conversion kits for popular calibers like .308 Winchester, .243 Win, 7mm-08 Rem, and .22-250 Rem. You must ensure you get the correct bolt head (magnum vs. standard) for the new cartridge.
Q: Is the barrel threaded for a muzzle brake or suppressor?
A: This specific model, as described, comes with a standard 24-inch barrel featuring a recessed crown. It is not factory-threaded. Threading would require a gunsmith’s services, which is a consideration if you plan to mitigate the .300 Win Mag’s recoil or run a suppressor.
Q: What scope bases does it use?
A: The Thompson/Center Dimension receiver is drilled and tapped for standard Remington 700-style scope bases. This is a huge plus, as it means you have a vast selection of mounts and rings from brands like Warne, Leupold, and Talley to choose from, ensuring easy compatibility.
That said, the Thompson/Center Dimension Left Hand in .300 Win Mag fills a specific niche with authority. It gives left-handed shooters a powerful, versatile option without the typical ‘lefty tax’ being exorbitant. It’s available at firearms-missouri.com for Missouri residents and nationwide, requiring an FFL transfer for firearm purchases. If you’re a southpaw looking for a serious, adaptable hunting rifle, this one deserves a close look.
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