Douglas 7mm 1-9 Twist CM #3 Contour Ultra Rifled Barrel – CONTOUR #3, MFR # 7MM9CM3
Build your next precision hunting or long-range rifle on proven match-grade quality with the CONTOUR #3 7MM9CM3 – the Douglas 7mm 1-9 Twist CM #3 Contour Ultra Rifled Barrel. Part of the famous Douglas Double XX Ultra Rifled line, this barrel blank is engineered for shooters who demand exceptional accuracy, tight tolerances, and long-term reliability from their 7mm builds. Brownells Österreich+2Egoods365+2
Whether you’re planning a lightweight mountain rifle, a precision hunting rig, or a custom 7mm build for steel and paper, this #3 contour barrel blank delivers the ideal balance of stiffness, weight, and premium craftsmanship.
Key Specs – CONTOUR #3 7MM9CM3
What Is the CONTOUR #3 7MM9CM3?
If you’re searching for:
…this is the exact product: a 7mm (.284) chrome-moly #3 contour barrel blank from Douglas, built in their Double XX Ultra Rifled series and finished to match-grade standards. Brownells Österreich+2Crow Wholesale+2
It’s designed as a premium blank for rebarreling projects, giving riflesmiths and serious shooters a precise foundation for accurate 7mm cartridges such as 7mm-08, 7mm Rem Mag (with correct shank/chamber work), 7mm SAUM, 7mm PRC short/mid-length customs, and other .284-based designs, depending on your action and chamber choice. Crow Wholesale+1
Douglas Double XX Ultra Rifled – Match-Grade Craftsmanship
Douglas Double XX Ultra Rifled barrels have earned a long-standing reputation for accuracy, thanks to tight QC and careful machining:
Button-rifled bores deliver exceptionally smooth internal finish, reducing fouling and making cleaning easier. Brownells Österreich+2GearChase+2
Groove diameter and straightness held to about 0.0005" – extremely tight tolerances for a production barrel blank. Brownells Österreich+2GearChase+2
6-groove rifling in smaller calibers (.22–.338) provides a proven, accurate profile for precision shooting. Brownells Österreich+1
Stress-relieved blanks – Douglas does not “straighten” blanks after rifling; instead, they are carefully stress-relieved to remain stable under heat. Brownells Österreich+2GearChase+2
The result is a premium-grade barrel blank with the consistency needed for tight groups and predictable cold-bore shots, whether you’re ringing steel or hunting in tough conditions.
7mm / .284 Caliber with 1:9 Twist – Flexible Bullet Choices
With a 1:9" twist rate, the CONTOUR #3 7MM9CM3 is tailored to the performance envelope of modern 7mm hunting and match bullets: Ammunition for Sale+1
Designed to stabilize a broad range of 7mm projectile weights commonly used in popular .284-based cartridges.
Suitable for traditional hunting bullets and many modern high-BC projectiles, making it a smart choice for long-range hunting or practical precision builds.
Ideal when you want one barrel that can run lighter bullets for flatter mid-range trajectories and heavier bullets for long-range wind performance, depending on your load development.
For SEO and product listings, calling this out as a “7mm 1:9 twist chrome-moly #3 contour Ultra Rifled barrel blank” helps capture twist- and caliber-specific searches.
#3 Contour – Balanced for Field & Precision
Douglas’s #3 contour is a medium sporter-style profile, widely used for accurate rifles that still need to be carry-friendly: Brownells Österreich+2Crow Wholesale+2
Lighter than heavy varmint or #5/#7 contours, making it great for mountain rifles, hunting rigs, and general-purpose field guns.
Still offers enough stiffness and mass to maintain accuracy as the barrel heats during typical hunting strings or modest volume range sessions.
Works well with many common sporter and light tactical stock inlets, reducing or eliminating the need for extensive stock modification.
If you want a rifle that carries like a hunter but shoots like a precision rig, #3 contour is an excellent middle ground.
Chrome Moly Construction – Strength & Versatility
The 7MM9CM3 model is specifically the chrome moly (CM) version of the #3 contour barrel: Brownells Österreich+2Brownells UK+2
Built from 4140 chrome moly steel, known for its toughness, fatigue resistance, and excellent strength-to-weight balance. Brownells Österreich+1
Accepts a wide variety of external finishes and coatings (bluing, nitriding, Cerakote, etc.), depending on your gunsmith’s process and your aesthetic preferences.
A traditional choice for hard-use field rifles, where durability and long service life are priority.
Douglas also offers stainless variants in the same contour, but 7MM9CM3 is the chrome moly SKU, ideal if you prefer the classic CM feel and finish. Brownells Österreich+2Crow Wholesale+2
Unthreaded, Unchambered Ultra Rifled Blank – Built Your Way
This product is sold as an unfinished barrel blank: Brownells Österreich+1
Unthreaded and unchambered – ready for a qualified gunsmith to cut the correct shank, threads, and chamber for your chosen action and cartridge.
Unturned blanks are typically 0.025"–0.050" larger in diameter and about 1–1½" longer than finished specs, giving your smith room to true and finish everything precisely. Brownells Österreich+1
Perfect for custom builds, ensuring the chamber, throat, and headspace are optimized for your specific load and application instead of a generic factory spec.
This makes the CONTOUR #3 7MM9CM3 a top-tier starting point for serious precision and custom hunting rifles.
Ideal Applications – Where the 7MM9CM3 Shines
The Douglas 7mm 1-9 Twist CM #3 Contour Ultra Rifled Barrel is an outstanding choice for:
Custom 7mm hunting rifles – from lightweight mountain guns to all-purpose big game rigs. Ammunition for Sale+1
Precision 7mm builds that need a balance of carry weight and long-range capability.
Rebarreling quality actions (Remington 700, custom clones, etc.) where you want to upgrade factory performance with a true match-grade barrel blank. Primary Tactical+1
Shooters who want a Douglas Double XX barrel specifically tuned to 7mm / .284 performance with a medium-weight contour.
Why Choose the CONTOUR #3 7MM9CM3 for Your Next Build?
When you compare 7mm barrel blanks, the Douglas CONTOUR #3 7MM9CM3 stands out because it combines:
If your search is for “CONTOUR #3 7MM9CM3” or “Douglas 7mm 1-9 Twist CM #3 Contour Ultra Rifled Barrel”, this is the exact chrome-moly #3 contour 7mm barrel blank you want—built to deliver the precision, consistency, and rugged performance that serious shooters and hunters expect from Douglas.
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