The CONTOUR #3 237270103 – Douglas .270 1-10 Twist CM #3 Contour Ultra Rifled Barrel is a premium-grade barrel blank built for shooters and gunsmiths who demand serious accuracy from their .270/6.8 mm (.277) rifle builds. Part of the renowned Douglas Double XX Ultra Rifled line, this #3 contour chrome moly barrel blank delivers match-level consistency, excellent machining quality, and the kind of long-term durability that makes it a favorite for rebarrel projects worldwide. Brownells UK+2Brownells+2
Precision .270/6.8 mm Barrel Blank with 1:10 Twist
This CONTOUR #3 model is optimized specifically for .270/6.8 mm (.277) caliber applications: Brownells Schweiz+2Ammunition for Sale+2
Caliber: .270 / 6.8 mm (.277)
Twist Rate: 1:10" – a proven all-around twist for stabilizing a wide range of popular .270 bullet weights. Ammunition for Sale+2Brownells UK+2
Ideal foundation for hunting, long-range steel, and general-purpose precision rifles once properly chambered.
The 1:10 twist gives you the flexibility to run many common hunting and target loads, making this blank an excellent choice if you want one barrel that can truly do it all.
#3 Contour – Perfect Balance of Rigidity and Field Weight
Douglas’ #3 contour is a versatile profile that splits the difference between heavy bench barrels and ultralight mountain tubes: Brownells+2Primary Tactical+2
A medium/heavy sporter profile that carries comfortably in the field yet maintains stiffness for repeatable accuracy.
Excellent choice for all-day hunting rifles, precision hunting rigs, and crossover rifles that see both field and range use.
If you’re building a rifle that has to hike into the backcountry but still stack rounds on target, the #3 contour is an ideal starting point.
Douglas Double XX Ultra Rifled – Match-Grade Manufacturing
Douglas Double XX barrels are famous for their premium quality and proven accuracy, and this .270 Ultra Rifled blank is no exception: Brownells Sverige+3Brownells+3Brownells UK+3
Button rifled for an exceptionally smooth bore and highly uniform rifling.
Tolerances for groove diameter and straightness held to about 0.0005", putting it firmly in the match-grade category. Brownells+2Brownells UK+2
Six-groove rifling in calibers from .22 through .338, including this .270 model, a configuration widely respected for accuracy and ease of load development. Brownells+1
Barrels are stress-relieved after rifling and not mechanically straightened, helping them remain stable during chambering, threading, and under firing heat. Brownells+2Brownells UK+2
The result is a blank that gives gunsmiths a reliable, consistent starting point for serious precision builds.
4140 Chrome Moly Steel – Strong, Durable, and Finish-Friendly
The CONTOUR #3 237270103 blank is made from 4140 chrome moly steel, a material long trusted in high-quality rifle barrels: Brownells UK+2Brownells Österreich+2
4140 Chrome Moly Steel provides excellent strength and toughness for hunting and high-volume shooting.
Machines cleanly for precise chambering, threading, and crowning, which gunsmiths appreciate.
Accepts traditional blued and other protective finishes beautifully, making it suitable for both classic and modern rifle aesthetics.
If you want a barrel that will stand up to years of field use without giving up accuracy, chrome moly Douglas blanks are an outstanding choice.
Unthreaded, Unchambered Blank for Custom Builds
This Douglas Ultra Rifled barrel is supplied as a blank, giving your gunsmith complete control over the final configuration: Brownells Österreich+2Brownells+2
Delivered unthreaded and unchambered, ready to be cut to your preferred cartridge, freebore, and throat dimensions.
“Finished” dimensions in Douglas spec charts show typical #3 contour sizes; blanks are supplied slightly oversize in length and diameter for final turning and fitting. Brownells Österreich+1
Designed for rebarrel projects and custom builds on bolt actions and similar platforms.
Important: As with any barrel blank, installation and chambering must be performed by a qualified gunsmith to ensure safe operation, proper headspace, and optimal accuracy. Brownells Österreich
Built for Real-World Accuracy – From Bench to Backcountry
With its .270 caliber, 1:10 twist, and #3 contour, the CONTOUR #3 237270103 is an excellent match for: Ammunition for Sale+2Brownells UK+2
Big-game hunting rifles where .270 performance and practical weight are a priority.
Long-range hunting and target rigs capable of ethical shots at distance with appropriate loads and optics.
General-purpose “do-it-all” rifles that must perform on steel, paper, and game with equal confidence.
If you’re upgrading a favorite action or starting a fresh custom project, this barrel blank gives you the quality foundation needed for a truly capable .270 rifle.
Key Specifications – CONTOUR #3 237270103
From Douglas and major distributors: Brownells+3Ammunition for Sale+3Brownells Schweiz+3
Product Name: Douglas .270 1-10 Twist CM #3 Contour Ultra Rifled Barrel
Listing / Stock ID: CONTOUR #3 237270103
Manufacturer: Douglas (Double XX Ultra Rifled series)
Manufacturer Part: 27010CM3
Caliber: .270 / 6.8 mm (.277)
Twist Rate: 1:10"
Contour: #3 (medium/heavy sporter profile)
Style: Ultra Rifled, Douglas Double XX premium barrel blank
Material: 4140 Chrome Moly Steel
Rifling: 6-groove, button rifled, stress-relieved
Configuration: Unthreaded, unchambered barrel blank (#3 contour)
SEO-Optimized Phrases Naturally Included
This long-form description is structured to help your product page rank for searches such as:
“CONTOUR #3 237270103”
“Douglas .270 1-10 Twist CM #3 Contour Ultra Rifled Barrel”
“.270 1-10 twist chrome moly #3 contour Douglas Double XX barrel blank”
“Douglas Ultra Rifled #3 contour barrel 270/6.8 mm 237270103”
“match grade 270 1-10 twist CM #3 contour rifle barrel blank”
Pair this description with clear photos and a concise spec table, and customers will immediately understand why the CONTOUR #3 237270103 Douglas .270 1-10 Twist CM #3 Contour Ultra Rifled Barrel is a top-tier choice for their next precision rifle build.
The End
