My Account (Sign in)
Your basket is empty.
0
Basket
contact us by phone Help and contact
Free standard delivery over £199
100-day return policy
My Account (Sign in)
Wish list
Your basket is empty. (0)
Basket
Newsletter Newsletter
Sale

Over 300,000 customers - we say thank you!

4.93/5 "Very good" (1400+ reviews)

40,000+ products for hunting and shooting sports

Rifle Parts Barrel Parts Rifle Barrel Blanks DOUGLAS 6MM 1-10 TWIST CM #5 CONTOUR ULTRA RIFLED BARREL Support

Discover unmatched accuracy with Douglas #5 Contour Ultra Rifled Barrel, crafted from premium materials for superior performance in your rebarrelling projects.
-10 %

DOUGLAS 6MM 1-10 TWIST CM #5 CONTOUR ULTRA RIFLED BARREL

237243105

Filters:

Variations
Filters:
Variations:

Variations:

-10 %
Discover unmatched accuracy with Douglas #5 Contour Ultra Rifled Barrel, crafted from premium materials for superior performance in your rebarrelling projects.
CONTOUR #5 - 6MM 1-10 TWIST CM #5 CONTOUR ULTRA RIFLED BARREL
394.9 GBP 3 £394.90 * £439.90
In stock
Caliber: 243/6 mm (.243) Contour: #5 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237243105
In stock
394.9 GBP 3 £394.90 * £439.90
-10 %
Experience unmatched accuracy with Douglas Double XX barrels, crafted from premium materials for smoothness and precision in your rebarrelling projects.
CONTOUR #5 - .257 1-10 TWIST CM #5 CONTOUR ULTRA RIFLED BARREL
319.9 GBP 2 £319.90 * £354.90
In stock
Caliber: 25 Caliber (.257) Contour: #5 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237257105
In stock
319.9 GBP 2 £319.90 * £354.90
-10 %
The Douglas 7mm 1-9 Twist CM #5 Contour Ultra Rifled Barrel offers unmatched accuracy, premium craftsmanship, and stress-relieved construction for superior performance.
CONTOUR #5 - 7MM 1-9 TWIST CM #5 CONTOUR ULTRA RIFLED BARREL
329.9 GBP 2 £329.90 * £364.90
In stock
Caliber: 284/7 mm (.284) Contour: #5 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-9 Product no.: 237284095
In stock
329.9 GBP 2 £329.90 * £364.90
-10 %
Douglas #5 Contour Ultra Rifled Barrels offer unmatched accuracy and smoothness, crafted from premium materials with precise tolerances for your rebarrelling needs.
CONTOUR #5 - 8MM 1-10 TWIST CM #5 CONTOUR ULTRA RIFLED BARREL
329.9 GBP 1 £329.90 * £364.90
In stock
Caliber: 8 mm (.323) Contour: #5 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237323105
In stock
329.9 GBP 1 £329.90 * £364.90
Experience unmatched accuracy with Douglas Double XX premium-grade barrels, featuring button rifling and tight tolerances for superior performance in rebarrelling projects.
CONTOUR #5 - .375 1-12 TWIST CM #5 CONTOUR ULTRA RIFLED BARREL
324.9 GBP 0 £324.90 *
Not available
Caliber: 375 Caliber (.375) Contour: #5 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-12 Product no.: 237375125
Not available
324.9 GBP 0 £324.90 *
Douglas .458 1-14 Twist CM #5 Contour Ultra Rifled Barrel offers unmatched accuracy, premium-grade construction, and stress-relieved design for superior performance.
CONTOUR #5 - .458 1-14 TWIST CM #5 CONTOUR ULTRA RIFLED BARREL
399.9 GBP 0 £399.90 *
Not available
Caliber: 458 Caliber (.458) Contour: #5 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-14 Product no.: 237458145
Not available
399.9 GBP 0 £399.90 *
-9 %
Achieve unmatched accuracy with Douglas Double XX barrels, featuring button rifling, stress relief, and precise tolerances for your rebarrelling needs.
CONTOUR #5 - 6MM 1-10 TWIST SS #5 CONTOUR ULTRA RIFLED BARREL
389.9 GBP 4 £389.90 * £429.90
In stock
Caliber: 243/6 mm (.243) Contour: #5 Material: Stainless Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237923105
In stock
389.9 GBP 4 £389.90 * £429.90
-11 %
Douglas .224 1-8 SS #5 Contour Ultra Rifled Barrel offers unmatched accuracy, premium-grade construction, and stress-relieved design for superior performance.
CONTOUR #5 - .224 1-8 SS #5 CONTOUR ULTRA RIFLED BARREL
364.9 GBP 1 £364.90 * £409.90
In stock
Caliber: 22 Caliber (.223-.224) Contour: #5 Material: Stainless Steel Style: Ultra RIfled Twist: 1-8 Product no.: 237924085
In stock
364.9 GBP 1 £364.90 * £409.90
-10 %
Experience unmatched accuracy with Douglas Double XX barrels, crafted from premium materials and button rifled for superior smoothness and precision.
CONTOUR #5 - .224 1-14 TWIST SS #5 CONTOUR ULTRA RIFLED BARREL
379.9 GBP 1 £379.90 * £419.90
In stock
Caliber: 22 Caliber (.223-.224) Contour: #5 Material: Stainless Steel Style: Ultra RIfled Twist: 1-14 Product no.: 237924145
In stock
379.9 GBP 1 £379.90 * £419.90
Douglas #5 Contour Ultra Rifled Barrel offers unmatched accuracy and smoothness with premium-grade construction, perfect for any rebarrelling project.
CONTOUR #5 - 7MM 1-9 TWIST SS #5 CONTOUR ULTRA RIFLED BARREL
429.9 GBP 0 £429.90 *
Not available
Caliber: 284/7 mm (.284) Contour: #5 Material: Stainless Steel Style: Ultra RIfled Twist: 1-9 Product no.: 237928095
Not available
429.9 GBP 0 £429.90 *
Discover the Douglas .30 1-10 Twist SS #5 Contour Ultra Rifled Barrel, renowned for its match-grade precision, superior smoothness, and stress-relieved construction.
CONTOUR #5 - .30 1-10 TWIST SS #5 CONTOUR ULTRA RIFLED BARREL
409.9 GBP 0 £409.90 *
Not available
Caliber: 30 Caliber (.308) Contour: #5 Material: Stainless Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237930105
Not available
409.9 GBP 0 £409.90 *
-9 %
Discover unmatched accuracy and smoothness with the Douglas .338 barrel, crafted from premium materials and designed for precision rebarrelling projects.
CONTOUR #5 - .338 1-10 TWIST SS #5 CONTOUR ULTRA RIFLED BARREL
389.9 GBP 4 £389.90 * £429.90
In stock
Caliber: 338 Caliber (.338) Contour: #5 Material: Stainless Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237933105
In stock
389.9 GBP 4 £389.90 * £429.90
-10 %
Discover unmatched accuracy with Douglas Double XX premium-grade barrels, featuring button rifling and stress relief for superior performance in rebarrelling projects.
CONTOUR #5 - .375 1-12 TWIST SS #5 CONTOUR ULTRA RIFLED BARREL
429.9 GBP 1 £429.90 * £479.90
In stock
Caliber: 375 Caliber (.375) Contour: #5 Material: Stainless Steel Style: Ultra RIfled Twist: 1-12 Product no.: 237937125
In stock
429.9 GBP 1 £429.90 * £479.90
Achieve unmatched accuracy with Douglas Double XX premium-grade barrels, crafted for smoothness and precision, perfect for any rebarrelling project.
CONTOUR #5 - 6.5MM 1-9 TWIST SS #5 CONTOUR ULTRA RIFLED BARREL
419.9 GBP 0 £419.90 *
Backorderable
Caliber: 264/6.5 mm (.264) Contour: #5 Material: Stainless Steel Style: Ultra RIfled Twist: 1-9 Product no.: 237964095
Backorderable
419.9 GBP 0 £419.90 *
319.9 429.9 14 GBP
-10 %
MSRP £439.90
394.9 GBP £394.90

Prices inclusive of duty & VAT.

Product no.: 237243105

Mfr. No.: 6MM10CM5

Famous, Douglas Double XX, premium-grade barrels are an excellent choice for any rebarrelling project. Proven accuracy and finest care in manufacture. Button rifled for unequalled smoothness with tolerances for groove diameter and straightness held to .0005". .22 through .338 barrels feature 6- grooves while the .358, .375 and .458 barrels have 8. No straightening is done and all barrels are stress relieved.
In stock 3 pcs. in the USA warehouse
Be the first to rate this product

Delivery time approx. 7-14 days.

100-Day Return Policy
No charges until we ship
No charge:
Your credit card will not be charged when you place your order.

No commitments:
You are under no obligation until the goods are shipped. You can cancel your order at any time before shipping - free of charge.

Not until shipping:
Your credit card will only be charged once we ship your order. Not before.
Wish List Ask question
order by phone
319.9 429.9 14 GBP
Description Specification Customers reviews Accessories

DOUGLAS 6MM 1-10 TWIST CM #5 CONTOUR ULTRA RIFLED BARREL

-10 %
MSRP £439.90
394.9 GBP £394.90

Prices inclusive of duty & VAT.

Is a 'Call to order' product.
Requires order by phone

Description:

Discover unmatched precision with Douglas's premium barrels.

Introducing the CONTOUR #5, DOUGLAS 6MM 1-10 TWIST CM #5 CONTOUR ULTRA RIFLED BARREL, a match-grade barrel blank from the U.S.'s oldest barrel maker, Douglas. These barrels are renowned for their exceptional quality and precision, making them the perfect choice for any rebarrelling project.

Product Features:

  • Famous Douglas Double XX premium-grade barrels
  • Proven accuracy with meticulous manufacturing care
  • Button rifled for unparalleled smoothness
  • Tolerances for groove diameter and straightness held to .0005"
  • .22 through .338 barrels feature 6 grooves; .358, .375, and .458 barrels have 8 grooves
  • No straightening is done; all barrels are stress relieved

Specifications:

Material: 4140 Chrome moly and stainless steel.
"Finished" dimensions are shown in the chart. Unturned Blanks will be .025" (.63mm) to .050" (1.3mm) larger in diameter and 1-½" (3.8cm) longer than shown. Not threaded or chambered.

Ordering Information:

To place an order, please provide the following:

  1. Complete 9-digit Stock # from the chart
  2. Caliber
  3. Twist
  4. Contour

If no Stock # is shown in the chart, that barrel must be ordered on a Special Order basis. Special Orders require full payment in advance and are non-cancelable and non-refundable. Please note that these items are not shipped prepaid.



Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. Douglas Double XX premium-grade barrels are renowned for their proven accuracy and are meticulously manufactured with button rifling for exceptional smoothness, maintaining strict tolerances.
  2. The barrels are made from 4140 Chrome Moly Steel, available in various calibers with specific groove counts, and come in a #5 contour with a 1-10 twist rate.
  3. When ordering, customers must provide the complete 9-digit stock number, caliber, twist, and contour; special orders require full payment upfront and are non-cancelable and non-refundable.

Attributes

  • Caliber: 
    243/6 mm (.243)
  • Contour: 
    #5
  • Material: 
    Chrome Moly Steel
  • Style: 
    Ultra RIfled
  • Twist: 
    1-10
  • Delivery weight: 1.86kg
  • Shipping height: 30mm
  • Shipping width: 30mm
  • Shipping length: 699mm

Item details

Made in USA
US export classification: 0A501.c

Customers reviews

Customer ratings (0)

0 / 5

Variations:

-10 %
Discover unmatched accuracy with Douglas #5 Contour Ultra Rifled Barrel, crafted from premium materials for superior performance in your rebarrelling projects.
CONTOUR #5 - 6MM 1-10 TWIST CM #5 CONTOUR ULTRA RIFLED BARREL
394.9 GBP 3 £394.90 * £439.90
In stock
Caliber: 243/6 mm (.243) Contour: #5 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237243105
In stock
394.9 GBP 3 £394.90 * £439.90
-10 %
Experience unmatched accuracy with Douglas Double XX barrels, crafted from premium materials for smoothness and precision in your rebarrelling projects.
CONTOUR #5 - .257 1-10 TWIST CM #5 CONTOUR ULTRA RIFLED BARREL
319.9 GBP 2 £319.90 * £354.90
In stock
Caliber: 25 Caliber (.257) Contour: #5 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237257105
In stock
319.9 GBP 2 £319.90 * £354.90
-10 %
The Douglas 7mm 1-9 Twist CM #5 Contour Ultra Rifled Barrel offers unmatched accuracy, premium craftsmanship, and stress-relieved construction for superior performance.
CONTOUR #5 - 7MM 1-9 TWIST CM #5 CONTOUR ULTRA RIFLED BARREL
329.9 GBP 2 £329.90 * £364.90
In stock
Caliber: 284/7 mm (.284) Contour: #5 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-9 Product no.: 237284095
In stock
329.9 GBP 2 £329.90 * £364.90
-10 %
Douglas #5 Contour Ultra Rifled Barrels offer unmatched accuracy and smoothness, crafted from premium materials with precise tolerances for your rebarrelling needs.
CONTOUR #5 - 8MM 1-10 TWIST CM #5 CONTOUR ULTRA RIFLED BARREL
329.9 GBP 1 £329.90 * £364.90
In stock
Caliber: 8 mm (.323) Contour: #5 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237323105
In stock
329.9 GBP 1 £329.90 * £364.90
Experience unmatched accuracy with Douglas Double XX premium-grade barrels, featuring button rifling and tight tolerances for superior performance in rebarrelling projects.
CONTOUR #5 - .375 1-12 TWIST CM #5 CONTOUR ULTRA RIFLED BARREL
324.9 GBP 0 £324.90 *
Not available
Caliber: 375 Caliber (.375) Contour: #5 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-12 Product no.: 237375125
Not available
324.9 GBP 0 £324.90 *
Douglas .458 1-14 Twist CM #5 Contour Ultra Rifled Barrel offers unmatched accuracy, premium-grade construction, and stress-relieved design for superior performance.
CONTOUR #5 - .458 1-14 TWIST CM #5 CONTOUR ULTRA RIFLED BARREL
399.9 GBP 0 £399.90 *
Not available
Caliber: 458 Caliber (.458) Contour: #5 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-14 Product no.: 237458145
Not available
399.9 GBP 0 £399.90 *
-9 %
Achieve unmatched accuracy with Douglas Double XX barrels, featuring button rifling, stress relief, and precise tolerances for your rebarrelling needs.
CONTOUR #5 - 6MM 1-10 TWIST SS #5 CONTOUR ULTRA RIFLED BARREL
389.9 GBP 4 £389.90 * £429.90
In stock
Caliber: 243/6 mm (.243) Contour: #5 Material: Stainless Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237923105
In stock
389.9 GBP 4 £389.90 * £429.90
-11 %
Douglas .224 1-8 SS #5 Contour Ultra Rifled Barrel offers unmatched accuracy, premium-grade construction, and stress-relieved design for superior performance.
CONTOUR #5 - .224 1-8 SS #5 CONTOUR ULTRA RIFLED BARREL
364.9 GBP 1 £364.90 * £409.90
In stock
Caliber: 22 Caliber (.223-.224) Contour: #5 Material: Stainless Steel Style: Ultra RIfled Twist: 1-8 Product no.: 237924085
In stock
364.9 GBP 1 £364.90 * £409.90
-10 %
Experience unmatched accuracy with Douglas Double XX barrels, crafted from premium materials and button rifled for superior smoothness and precision.
CONTOUR #5 - .224 1-14 TWIST SS #5 CONTOUR ULTRA RIFLED BARREL
379.9 GBP 1 £379.90 * £419.90
In stock
Caliber: 22 Caliber (.223-.224) Contour: #5 Material: Stainless Steel Style: Ultra RIfled Twist: 1-14 Product no.: 237924145
In stock
379.9 GBP 1 £379.90 * £419.90
Douglas #5 Contour Ultra Rifled Barrel offers unmatched accuracy and smoothness with premium-grade construction, perfect for any rebarrelling project.
CONTOUR #5 - 7MM 1-9 TWIST SS #5 CONTOUR ULTRA RIFLED BARREL
429.9 GBP 0 £429.90 *
Not available
Caliber: 284/7 mm (.284) Contour: #5 Material: Stainless Steel Style: Ultra RIfled Twist: 1-9 Product no.: 237928095
Not available
429.9 GBP 0 £429.90 *
Discover the Douglas .30 1-10 Twist SS #5 Contour Ultra Rifled Barrel, renowned for its match-grade precision, superior smoothness, and stress-relieved construction.
CONTOUR #5 - .30 1-10 TWIST SS #5 CONTOUR ULTRA RIFLED BARREL
409.9 GBP 0 £409.90 *
Not available
Caliber: 30 Caliber (.308) Contour: #5 Material: Stainless Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237930105
Not available
409.9 GBP 0 £409.90 *
-9 %
Discover unmatched accuracy and smoothness with the Douglas .338 barrel, crafted from premium materials and designed for precision rebarrelling projects.
CONTOUR #5 - .338 1-10 TWIST SS #5 CONTOUR ULTRA RIFLED BARREL
389.9 GBP 4 £389.90 * £429.90
In stock
Caliber: 338 Caliber (.338) Contour: #5 Material: Stainless Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237933105
In stock
389.9 GBP 4 £389.90 * £429.90
-10 %
Discover unmatched accuracy with Douglas Double XX premium-grade barrels, featuring button rifling and stress relief for superior performance in rebarrelling projects.
CONTOUR #5 - .375 1-12 TWIST SS #5 CONTOUR ULTRA RIFLED BARREL
429.9 GBP 1 £429.90 * £479.90
In stock
Caliber: 375 Caliber (.375) Contour: #5 Material: Stainless Steel Style: Ultra RIfled Twist: 1-12 Product no.: 237937125
In stock
429.9 GBP 1 £429.90 * £479.90
Achieve unmatched accuracy with Douglas Double XX premium-grade barrels, crafted for smoothness and precision, perfect for any rebarrelling project.
CONTOUR #5 - 6.5MM 1-9 TWIST SS #5 CONTOUR ULTRA RIFLED BARREL
419.9 GBP 0 £419.90 *
Backorderable
Caliber: 264/6.5 mm (.264) Contour: #5 Material: Stainless Steel Style: Ultra RIfled Twist: 1-9 Product no.: 237964095
Backorderable
419.9 GBP 0 £419.90 *

Alternative items

Oops! Something went wrong.

We encountered an error while loading this content. Please refresh the page to continue. If the issue persists, contact our customer support.

Site Navigation
Product Categories
Ordering
Customer Service

Welcome!

to Brownells UK, your destination for anything gun related. With our roots in a genuine passion for firearms, we bring you an unmatched selection of Gun Parts, Firearm Accessories, Gunsmithing Tools, Scopes & Red Dot Sights and Expert Knowledge.

Whether you're looking to maintain, repair, or upgrade, we've got what you need!

For Shooters, By Shooters
We share your enthusiasm and know exactly what you're looking for because we're part of the community.

Massive Selection
From the essentials to the unique, find everything under one roof.

Our blend of tradition and innovation
Shop with the convenience of modern technology, backed by a legacy of experience.

Browse our collection and discover why we're the trusted name in shooting sports & hunting.

Brownells Norge - Komplett utvalg av ladeutstyr, våpendeler, kuler, hylser, kikkerter, optikk og luftvåpen Brownells Österreich - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells Switzerland - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells Deutschland - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells France - Le plus grand fournisseur d'Accessoires pour le tir, Pièces détachées & Outils d'Armurier Brownells Iberica - El mayor proveedor de accesorios para el Tiro, Piezas y herramientas del armero. Brownells Sverige - Världens största leverantör av Vapendelar, Vapensmide Verktyg & Skyttetillbehör Brownells Suomi Brownells Italia - Il negozio del più grande rivenditore di componenti e accessori per armi da tiro, difesa e caccia Brownells Polska - Największy na świecie dostawca części broni, narzędzi rusznikarskich & akcesoriów strzeleckich Brownells Česko - Největší světový dodavatel součástí zbraní, střeleckého příslušenství a zbrojního nářadí
*
Prices inclusive of duty & VAT.

© 2025 Brownells UK
Part of the Brownells Europe Group

Logo Brownells
Classical viewClassical view Mobile viewMobile view
Back to top