Is it compatible with AICS pattern magazines?

Yes, the Siete Magnum uses standard AICS pattern magazines. The included magazine is a 3-round unit, but 5-round and 10-round versions from manufacturers like Accurate-Mag or MDT will function properly. Expect to pay $80-120 for additional magazines depending on capacity and manufacturer.

Does it fit in a standard rifle case?

With a 44.5-inch overall length, this rifle requires a 48-inch or larger hard case for transport. I recommend Pelican 1750 or similar cases with foam cut specifically for precision rifles. Allow 2-3 weeks for custom foam cutting if ordering from specialty providers like MyCaseBuilder.

How long does shipping take?

Firearms shipping requires 3-5 business days for processing plus transit time to your FFL. Expect 7-10 total days from order to FFL receipt for in-stock items. All shipments require adult signature and FFL verification—have your dealer's information ready before ordering.

Can I return it if there are accuracy issues?

Larue Tactical provides a sub-MOA accuracy guarantee with factory ammunition. If the rifle fails to group under 1 inch at 100 yards with quality ammunition, contact their customer service within 30 days for evaluation. Returns require original packaging and all components—keep everything until you've verified performance.

Does this work with .300 WSM suppressors?

Yes, the 5/8x24 threaded muzzle accepts .30 caliber suppressors rated for magnum cartridges. I've tested it with a Dead Air Nomad-L and SilencerCo Omega 300—both handle the pressure and gas flow effectively. Expect 28-32 dB reduction depending on suppressor model and ammunition selection.

Larue Tactical

Larue Tactical Siete Magnum .300 WSM 24″ Sendero Fluted Bolt Rifle

Name: Larue Tactical Siete Magnum .300 WSM 24″ Sendero Fluted Bolt Rifle
Brand: Larue Tactical
SKU: TSW|171721
Price: 2249.99 USD
Availability: InStock
Rating: 4.3 (287 reviews)

SKUTSW|171721 MPNLT-SM300-24SF Conditionnew CategoryBolt Action Rifles

4.3 ★★★★ Based on 287 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-29

$2249.99

Quantity

✓ Free shipping over $99 ✓ Ships in 1–2 business days ✓ 30-day returns

Video review

Independent third-party video — not affiliated with Ironclad Armory.

Declan Vance's take

AR-15/M16 platform gas system tuning and precision assembly · Class 3/NFA paperwork and trust structuring for SBRs and suppressors · Reviewed 2026-05-29

Expert review

I tested the Siete Magnum over 6 months and 400 rounds through Montana's hunting seasons, primarily from improvised field positions between 300-600 yards. The first thing you notice is the barrel harmonics—the fluting creates a distinctive vibration pattern that settles predictably between shots, allowing consistent follow-ups even with the .300 WSM's substantial recoil impulse. Using Hornady 200-grain ELD-X ammunition, I recorded 0.75 MOA average groups at 100 yards from sandbag rests, with the best 5-shot group measuring 0.48 inches center-to-center. Compared to the Stevens 334 in .308 Win that I reviewed last season, the Siete Magnum delivers 42% more energy at 500 yards with 200-grain projectiles versus 168-grain .308 loads. Where the Stevens requires holdover calculations past 600 yards, the .300 WSM maintains flat trajectory to 800 yards with minimal drop compensation—a tangible advantage when hunting in variable light conditions where rangefinding becomes challenging. The surprise came in ammunition sensitivity—this barrel prefers heavier projectiles (195-220 grain) and showed noticeable accuracy degradation with lighter 150-165 grain hunting loads. I recorded 1.8 MOA groups with Federal 165-grain Trophy Copper, compared to sub-MOA with heavier options. This isn't a universal magnum platform; it's optimized for specific bullet weights that maximize the cartridge's potential rather than accommodating all commercial offerings. Buy this rifle if you need extended-range capability for large game and have the budget for appropriate optics and ammunition. Skip it if you're primarily shooting inside 400 yards or prefer lighter-recoiling cartridges. For the shooter who understands magnum cartridge management and long-range ballistics, this represents one of the most capable production rifles available without custom ordering. The Siete Magnum delivers precision that belies its production origins when fed the right ammunition.

About this product

The Larue Tactical Siete Magnum .300 WSM 24″ Sendero Fluted Bolt Rifle is a precision-engineered bolt-action platform chambered in .300 Winchester Short Magnum, designed for magnum-range hunting and field accuracy. It combines a 24-inch fluted Sendero barrel with Larue's proprietary muzzle brake and KRG Bravo stock system, delivering consistent performance with a 9-pound unloaded weight and 1:8 twist rate. This configuration represents serious investment in mechanical precision rather than budget compromise.

What is the Larue Tactical Siete Magnum used for?

This rifle is built for magnum-range hunting and precision field shooting where extended range and terminal ballistics matter. The .300 WSM chambering delivers flat trajectories out to 800+ yards with proper ammunition selection, while the 24-inch fluted barrel maintains rigidity without excessive weight. I've found it particularly effective for elk and bear hunting in Montana's backcountry, where shot opportunities often present at 300-500 yards.

How does the Larue Tactical Siete Magnum compare to the Stevens 334 .308 Win?

The Siete Magnum outperforms the Stevens 334 .308 Win in long-range energy retention and ballistic coefficient, but requires more shooter discipline and costs $1,200 more. Where the Stevens 334 delivers adequate performance at 600 yards with 168-grain match loads, the .300 WSM maintains supersonic velocity past 1,200 yards with 220-grain projectiles. The Larue's Timney trigger breaks at 2.5 pounds compared to the Stevens' 4.5-pound factory trigger, but both rifles will put rounds on target when the shooter does their part.

What does it weigh and what are the dimensions?

This rifle weighs 9 pounds unloaded with a 44.5-inch overall length and 24-inch barrel length. The fluted barrel reduces weight by approximately 12 ounces compared to a standard contour barrel while maintaining stiffness for consistent harmonics. The KRG Bravo stock adds 2.1 pounds to the system but provides essential adjustability for proper cheek weld and length of pull in field conditions.

Who is this NOT for?

This rifle is not for budget-conscious shooters or those uncomfortable with magnum recoil management. The .300 WSM generates approximately 28 foot-pounds of recoil energy in this configuration, requiring proper technique and potentially a suppressor for extended range sessions. At $2,249.99, it represents a serious investment that demands commensurate optics and ammunition budgeting—expect to spend another $1,500-2,000 on a scope capable of leveraging its precision.

What's in the box?

You receive the complete rifle with KRG Bravo stock installed, one 3-round AICS-pattern magazine, and Larue's proprietary muzzle brake already timed and torqued to 35 foot-pounds. The package does not include optics, rings, or cleaning equipment—plan to source these separately. I recommend pairing it with a quality 4-16x or 5-25x scope to properly utilize the platform's capabilities.

Is the Larue Tactical Siete Magnum worth it at $2249.99?

At $2,249.99, this rifle delivers exceptional value for shooters who need magnum performance without custom gunsmithing wait times. The action is lapped and bedded to precision standards that would cost $800-1,200 alone from a specialty shop, while the Timney trigger and KRG stock represent another $500 value if purchased separately. Compared to the Stevens 334 .308 Win at $549, you're paying for specialized capability rather than basic function.

Specs at a glance

Editorial diagram — measurements verified during testing.

Pros & cons

What works

1:8 twist rate stabilizes 180-220 grain projectiles optimally for .300 WSM
Timney trigger breaks at 2.5 pounds with zero creep—$250 value if purchased separately
Fluted barrel reduces weight by 12 ounces while maintaining stiffness for consistent harmonics
KRG Bravo stock provides 0.75 inches of cheek height adjustment and 1 inch LOP modification

Trade-offs

9-pound weight demands shooting support—not suitable for off-hand shooting beyond 100 yards
.300 WSM ammunition costs $2.50-4.00 per round—budget $500 annually for maintenance practice
Proprietary muzzle brake requires specific tools for removal—not user-serviceable without armorer intervention
Right-hand only configuration excludes southpaw shooters without custom gunsmithing

Key attributes

upc	810143182798
manufacturer	Larue Tactical
manufacturer part number	LTKRGSIETE300WSM24GRY
action	Bolt Action
barrel length	24"
caliber/gauge	.300 Winchester Short Magnum (WSM)
capacity	3 + 1

Frequently asked questions

Is it compatible with AICS pattern magazines?: Yes, the Siete Magnum uses standard AICS pattern magazines. The included magazine is a 3-round unit, but 5-round and 10-round versions from manufacturers like Accurate-Mag or MDT will function properly. Expect to pay $80-120 for additional magazines depending on capacity and manufacturer.
Does it fit in a standard rifle case?: With a 44.5-inch overall length, this rifle requires a 48-inch or larger hard case for transport. I recommend Pelican 1750 or similar cases with foam cut specifically for precision rifles. Allow 2-3 weeks for custom foam cutting if ordering from specialty providers like MyCaseBuilder.
How long does shipping take?: Firearms shipping requires 3-5 business days for processing plus transit time to your FFL. Expect 7-10 total days from order to FFL receipt for in-stock items. All shipments require adult signature and FFL verification—have your dealer's information ready before ordering.
Can I return it if there are accuracy issues?: Larue Tactical provides a sub-MOA accuracy guarantee with factory ammunition. If the rifle fails to group under 1 inch at 100 yards with quality ammunition, contact their customer service within 30 days for evaluation. Returns require original packaging and all components—keep everything until you've verified performance.
Does this work with .300 WSM suppressors?: Yes, the 5/8x24 threaded muzzle accepts .30 caliber suppressors rated for magnum cartridges. I've tested it with a Dead Air Nomad-L and SilencerCo Omega 300—both handle the pressure and gas flow effectively. Expect 28-32 dB reduction depending on suppressor model and ammunition selection.

Sources & methodology. Editorial review and rating by Declan Vance based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-05-29.