PROOF Research Bolt-Action Barrel Blank — .284 Cal (7mm) | 24" | Sendero Contour | 1:8" Twist | 5-Groove Rifling | Carbon Fiber-Wrapped | SKU 106501 | UPC 843068106501
Build a rifle that carries light and shoots tight. The PROOF Research .284 Cal (7mm) Bolt-Action Barrel Blank pairs a hand-lapped stainless core with a proprietary carbon fiber wrap to deliver heavy-barrel precision at a fraction of the weight. Cut to the proven Sendero contour, this 24-inch blank features a 1:8" twist and 5-groove rifling—a sweet spot for stabilizing today’s high-BC 7mm bullets while maintaining excellent heat management and point-of-impact consistency.
Why Choose This PROOF Carbon Fiber Barrel Blank
Heavy-barrel accuracy, mountain-rifle weight: Carbon fiber increases stiffness-to-weight, giving you the harmonics of a steel heavy contour without the front-end fatigue.
Sendero contour confidence: A long-range favorite that balances rigidity and handling—ideal for precision hunting rigs and crossover competition builds.
Twist tuned for modern 7mm: The 1:8" twist shines with 160–180+ grain long, sleek projectiles while still performing brilliantly with popular 150–160 grain hunting loads.
5-groove rifling advantage: Reduced bullet deformation and excellent gas seal for consistent velocities and tight vertical at distance.
Runs cooler, groups longer: Carbon wrap helps shed heat and dampen vibration, minimizing thermal shift during extended strings.
Blank = custom freedom: Chamber it to your mission—7mm PRC, 7mm Rem. Mag., .280 Ackley Improved, 7mm-08 Rem., 7 SAUM, and more. Set your tenon, shoulder, throat, and crown exactly how you like.
Ideal Use Cases
Backcountry & Western big-game rifles where ounces matter and first-round hits count
Precision crossover builds that pull double duty on the range and in the field
Suppressed hunting rigs seeking stable POI and manageable overall length
Gunsmithing & Build Notes
Chambering: Choose freebore/throat for your bullet length and magazine COAL (AICS short/long action, BDL, etc.).
Muzzle work: Finish with your preferred crown and 5/8-24 TPI (common) or custom thread; cut threads concentric to bore for brakes/suppressors.
Action & bedding: Pair with a quality action and consistent bedding. Torque to spec to unlock the blank’s full potential.
Load development: Expect excellent results with 160–175/180gr high-BC bullets; true your solver with real drops at 400–800+ yards.
Heat discipline: Carbon helps, but allow sensible cool-downs during break-in and long shot strings to preserve throat life.
Real Advantages You’ll Feel
Better balance in field positions: Less muzzle weight steadies kneeling, seated, and off-pack shots.
Stay in the scope: Consistent harmonics + optional brake/suppressor help you spot your own impacts for fast, ethical follow-ups.
Carry farther with less fatigue: Save ounces where they matter most for long climbs and sidehills.
Key Features at a Glance
Caliber: .284 (7mm) barrel blank (unchambered; gunsmithing required)
Length: 24"
Contour: Sendero (carbon fiber-wrapped over stainless core)
Twist Rate: 1:8" (optimized for heavy 7mm bullets)
Rifling: 5 grooves
Construction: Hand-lapped stainless core + proprietary carbon fiber wrap
Finish: Carbon fiber exterior; stainless exposed at tenon/muzzle after machining
SKU: 106501 | UPC: 843068106501
Specifications
| Attribute | Detail |
|---|
| Product Type | Bolt-action barrel blank |
| Caliber | .284 (7mm) |
| Length | 24" |
| Contour | Sendero |
| Twist | 1:8" |
| Rifling | 5-groove |
| Core Material | Match-grade, hand-lapped stainless steel |
| Wrap | Carbon fiber engineered layup |
| Chamber | Unchambered (custom gunsmithing required) |
| Muzzle | Unfinished; crown/thread to spec |
| SKU | 106501 |
| UPC | 843068106501 |
Care & Maintenance
Clean like a premium stainless match barrel—use a bore guide, coated rod, and quality solvent; avoid aggressive steel tools.
Verify muzzle device torque and suppressor alignment periodically.
Allow reasonable cool-down during extended strings to maintain peak precision.
SEO Highlights (for Merchandising & Search)
PROOF Research .284 7mm carbon fiber barrel blank, 24" Sendero contour, 1:8 twist 5-groove 7mm barrel, lightweight carbon-wrapped rifle barrel, 7mm PRC / 7mm Rem Mag / .280 AI barrel blank, PROOF 106501, UPC 843068106501, long-range 7mm barrel blank sendero, match-grade stainless core carbon wrap.
Build lighter, shoot flatter, and carry farther—choose the PROOF Research .284 Cal, 24" Sendero Carbon Fiber–Wrapped Barrel Blank (1:8, 5-groove) for a custom rifle that performs like a match gun and packs like a mountain rig.
The End
