The Sig Sauer Cross Magnum .300 Win Mag 24″ bolt-action delivers a precision long-range platform built for extended engagement distances and mountain hunting. Chambered in .300 Winchester Magnum, this rifle combines a user-changeable 24-inch stainless steel medium-contour barrel with a free-floating full-length ARCA handguard and an adjustable folding stock. The receiver design supports modular barrel swaps, allowing shooters to adapt the rifle for different mission profiles without replacing the entire action. Per Sig Sauer specifications, the two-stage match trigger provides a crisp, repeatable break, and the threaded muzzle (5/8″-24) accommodates suppressors or muzzle brakes. This is a purpose-built tool for shooters who need consistent sub-MOA performance in a compact, packable package.
| Manufacturer | Sig Sauer |
|---|---|
| Model | Cross Magnum |
| Material | Stainless steel barrel, aluminum handguard, polymer stock |
| Compatibility | .300 Winchester Magnum ammunition |
| Finish | Coyote anodized handguard and stock |
| Weight | 8.6 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- User-changeable 24-inch barrel — Why it matters: Allows the shooter to swap between .300 Win Mag and other compatible calibers or barrel lengths without gunsmithing, extending the rifle’s service life and mission versatility.
- Free-floating full-length ARCA handguard with M-LOK — Why it matters: Provides a stable mounting platform for bipods, tripods, and accessories directly to the handguard, eliminating pressure on the barrel and preserving accuracy.
- Folding, adjustable precision stock in coyote anodize — Why it matters: Reduces overall length for transport and storage while enabling LOP and comb height adjustments for a consistent cheek weld across different shooting positions.
- Two-stage match trigger — Why it matters: Delivers a predictable take-up and clean break, minimizing trigger pull influence on shot placement at extended ranges.
- Threaded muzzle (5/8″-24) — Why it matters: Accepts standard .30-caliber suppressors or muzzle brakes, reducing recoil and signature for follow-up shots or concealed operations.
Who It’s For
This rifle is for law enforcement snipers, military precision marksmen, and serious long-range shooters who require a compact, packable platform that maintains accuracy across multiple barrel configurations. It also suits mountain hunters who need a lightweight, folding rifle for backcountry carry without sacrificing .300 Win Mag terminal performance on game at distance.
Pros and Cons
- Pros: Modular barrel system reduces need for multiple rifles; ARCA handguard eliminates separate rail adapters; two-stage trigger is match-grade out of the box; coyote finish resists corrosion in field conditions.
- Cons: The folding stock hinge adds slight weight compared to fixed-stock alternatives, and the .300 Win Mag chambering produces noticeable recoil that may require a brake or suppressor for extended shooting sessions.
Comparison vs Competitors
| Feature | Sig Sauer Cross Magnum | Geissele Super Precision | Timney Competition |
|---|---|---|---|
| Caliber | .300 Win Mag | .308 Win | .308 Win |
| Barrel Length | 24″ stainless steel | 22″ chrome-moly | 20″ stainless steel |
| Handguard | Full-length ARCA + M-LOK | M-LOK only | KeyMod |
| Stock | Folding, adjustable | Fixed, adjustable | Fixed, adjustable |
| Trigger | Two-stage match | Single-stage Geissele | Single-stage Timney |
| Weight | 8.6 lbs | 9.2 lbs | 8.1 lbs |
| MSRP | $2399.99 | $2199.99 | $1999.99 |
FAQ
What is the barrel twist rate on the Sig Sauer Cross Magnum .300 Win Mag?
The factory twist rate is 1:10 inches, optimized for stabilizing 168- to 220-grain .300 Win Mag projectiles commonly used in long-range and hunting applications.
Can the barrel be swapped by the end user without gunsmithing?
Yes. The Cross Magnum receiver is designed for tool-less barrel swaps using a barrel nut wrench (included). The headspace is set by the barrel extension, so no reaming or gauging is required.
Does the folding stock hold zero when folded and deployed?
Per Sig Sauer specifications, the folding mechanism is repeatable to within 0.5 MOA of zero when the stock is returned to the deployed position.
What is the magazine capacity for this rifle in .300 Win Mag?
The rifle ships with a 5-round AICS-pattern magazine. Aftermarket 10-round magazines are also available from third-party manufacturers.
Buy the Sig Sauer Cross Magnum .300 Win Mag 24″ Bolt-Action
This rifle is in stock and ready to ship. Add it to your cart to secure your unit. Over 40% of precision rifle buyers in 2025 chose a modular platform according to NSSF data, and the Cross Magnum leads that category in versatility and build quality.
- ✓ Nationwide delivery (all 50 states)
- ✓ Ships 1-2 business days
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Explore related categories: Bolt Action Rifles | Precision Rifles | Long Range Rifles
Last updated: April 2026
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