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)
Shopping 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

Home Rifle Parts Barrel Parts Rifle Barrel Blanks DOUGLAS "AIR-GAUGED" PREMIUM BARREL Support
Discover the AIR-GAUGED PREMIUM BARREL by DOUGLAS. Precision-engineered for unmatched accuracy and performance. 🎯 Perfect for your next build!

DOUGLAS "AIR-GAUGED" PREMIUM BARREL - DOUGLAS 30 CALIBER 1-10 TWIST #7 CHROME MOLY BARREL

237630107

Variations:

Discover the AIR-GAUGED PREMIUM BARREL by DOUGLAS. Precision-engineered for unmatched accuracy and performance. 🎯 Perfect for your next build!
DOUGLAS 30 CALIBER 1-10 TWIST #7 CHROME MOLY BARREL
359.9 GBP 1 £359.90 *
In stock - Is a 'Call to order' product.
Caliber: 30 Caliber (.308) Material: Chrome Moly Steel Twist: 1-10
In stock - Is a 'Call to order' product.
359.9 GBP 1 £359.90 *
Ask question
Discover the AIR-GAUGED Premium Barrel by Douglas for unmatched accuracy! 🎯 Precision-crafted for 22 Caliber rifles, it's a must-have for enthusiasts!
DOUGLAS 22 CALIBER 1-14 TWIST #7 CHROME MOLY BARREL
384.9 GBP 2 £384.90 *
In stock - Is a 'Call to order' product.
Caliber: 22 Caliber (.223-.224) Material: Chrome Moly Steel Twist: 1-14
In stock - Is a 'Call to order' product.
384.9 GBP 2 £384.90 *
Ask question
Discover the AIR-GAUGED 7mm Chrome Moly Barrel for unmatched precision and accuracy. 🎯 Perfect for serious shooters!
DOUGLAS 7MM 1-9 TWIST #7 CHROME MOLY BARREL
369.9 GBP 3 £369.90 *
In stock - Is a 'Call to order' product.
Caliber: 284/7 mm (.284) Material: Chrome Moly Steel Twist: 1-9
In stock - Is a 'Call to order' product.
369.9 GBP 3 £369.90 *
Ask question
Discover the AIR-GAUGED PREMIUM BARREL by DOUGLAS! 🎯 Precision-crafted for unmatched accuracy, perfect for your next rifle build.
DOUGLAS 30 CALIBER 1-10 TWIST X-LONG UNTURNED BLANK 1.250 DIAMETER
439.9 GBP 2 £439.90 *
In stock - Is a 'Call to order' product.
Caliber: 30 Caliber (.308) Material: Chrome Moly Steel Twist: 1-10
In stock - Is a 'Call to order' product.
439.9 GBP 2 £439.90 *
Ask question
Discover the AIR-GAUGED 30 Caliber Barrel by DOUGLAS. Precision-engineered for unmatched accuracy 🎯 and quality. Perfect for your next build!
DOUGLAS 30 CALIBER 1-12 TWIST #7 CHROME MOLY BARREL
429.9 GBP 2 £429.90 *
In stock - Is a 'Call to order' product.
Caliber: 30 Caliber (.308) Material: Chrome Moly Steel Twist: 1-12
In stock - Is a 'Call to order' product.
429.9 GBP 2 £429.90 *
Ask question
Discover the AIR-GAUGED PREMIUM BARREL by DOUGLAS! 🛠️ Precision-engineered for unmatched accuracy in 6mm caliber. Perfect for your next build!
DOUGLAS 6MM 1-10 TWIST #7 STAINLESS BARREL
479.9 GBP 1 £479.90 *
In stock - Is a 'Call to order' product.
Caliber: 243/6 mm (.243) Material: Stainless Steel Twist: 1-10
In stock - Is a 'Call to order' product.
479.9 GBP 1 £479.90 *
Ask question
Discover the AIR-GAUGED PREMIUM BARREL by DOUGLAS! 🎯 Precision-engineered for unmatched accuracy in your 7mm rifle builds.
DOUGLAS 7MM 1-9 TWIST #7 STAINLESS BARREL
449.9 GBP 2 £449.90 *
In stock - Is a 'Call to order' product.
Caliber: 284/7 mm (.284) Material: Stainless Steel Twist: 1-9
In stock - Is a 'Call to order' product.
449.9 GBP 2 £449.90 *
Ask question
359.9 479.9 7 GBP
359.9 GBP 1 £359.90

Prices inclusive of duty & VAT.

Product no.: 237630107

Mfr. No.: 3010CM7AIR

Every barrel is precision, instrument-inspected for absolute straightness and, air gauged for maximum uniformity to yield the greatest accuracy possible. Land and groove tolerance from breech to muzzle can vary only .0001". Only a barrel that meets these demanding criteria wears the XX Premium stamp.
In stock - Is a 'Call to order' product.
3

Delivery time approx. 7-14 days.
1 pcs. in the USA warehouse

Is a 'Call to order' product.

Delivery time approx. 7-14 days.
1 pcs. in the USA warehouse

Wish List Ask question
Requires order by phone

Variations:

Discover the AIR-GAUGED PREMIUM BARREL by DOUGLAS. Precision-engineered for unmatched accuracy and performance. 🎯 Perfect for your next build!
DOUGLAS 30 CALIBER 1-10 TWIST #7 CHROME MOLY BARREL
359.9 GBP 1 £359.90 *
In stock - Is a 'Call to order' product.
Caliber: 30 Caliber (.308) Material: Chrome Moly Steel Twist: 1-10
In stock - Is a 'Call to order' product.
359.9 GBP 1 £359.90 *
Ask question
Discover the AIR-GAUGED Premium Barrel by Douglas for unmatched accuracy! 🎯 Precision-crafted for 22 Caliber rifles, it's a must-have for enthusiasts!
DOUGLAS 22 CALIBER 1-14 TWIST #7 CHROME MOLY BARREL
384.9 GBP 2 £384.90 *
In stock - Is a 'Call to order' product.
Caliber: 22 Caliber (.223-.224) Material: Chrome Moly Steel Twist: 1-14
In stock - Is a 'Call to order' product.
384.9 GBP 2 £384.90 *
Ask question
Discover the AIR-GAUGED 7mm Chrome Moly Barrel for unmatched precision and accuracy. 🎯 Perfect for serious shooters!
DOUGLAS 7MM 1-9 TWIST #7 CHROME MOLY BARREL
369.9 GBP 3 £369.90 *
In stock - Is a 'Call to order' product.
Caliber: 284/7 mm (.284) Material: Chrome Moly Steel Twist: 1-9
In stock - Is a 'Call to order' product.
369.9 GBP 3 £369.90 *
Ask question
Discover the AIR-GAUGED PREMIUM BARREL by DOUGLAS! 🎯 Precision-crafted for unmatched accuracy, perfect for your next rifle build.
DOUGLAS 30 CALIBER 1-10 TWIST X-LONG UNTURNED BLANK 1.250 DIAMETER
439.9 GBP 2 £439.90 *
In stock - Is a 'Call to order' product.
Caliber: 30 Caliber (.308) Material: Chrome Moly Steel Twist: 1-10
In stock - Is a 'Call to order' product.
439.9 GBP 2 £439.90 *
Ask question
Discover the AIR-GAUGED 30 Caliber Barrel by DOUGLAS. Precision-engineered for unmatched accuracy 🎯 and quality. Perfect for your next build!
DOUGLAS 30 CALIBER 1-12 TWIST #7 CHROME MOLY BARREL
429.9 GBP 2 £429.90 *
In stock - Is a 'Call to order' product.
Caliber: 30 Caliber (.308) Material: Chrome Moly Steel Twist: 1-12
In stock - Is a 'Call to order' product.
429.9 GBP 2 £429.90 *
Ask question
Discover the AIR-GAUGED PREMIUM BARREL by DOUGLAS! 🛠️ Precision-engineered for unmatched accuracy in 6mm caliber. Perfect for your next build!
DOUGLAS 6MM 1-10 TWIST #7 STAINLESS BARREL
479.9 GBP 1 £479.90 *
In stock - Is a 'Call to order' product.
Caliber: 243/6 mm (.243) Material: Stainless Steel Twist: 1-10
In stock - Is a 'Call to order' product.
479.9 GBP 1 £479.90 *
Ask question
Discover the AIR-GAUGED PREMIUM BARREL by DOUGLAS! 🎯 Precision-engineered for unmatched accuracy in your 7mm rifle builds.
DOUGLAS 7MM 1-9 TWIST #7 STAINLESS BARREL
449.9 GBP 2 £449.90 *
In stock - Is a 'Call to order' product.
Caliber: 284/7 mm (.284) Material: Stainless Steel Twist: 1-9
In stock - Is a 'Call to order' product.
449.9 GBP 2 £449.90 *
Ask question

Description:

XX Grade; Hand-Selected For Uniformity To Within .0001"
Every barrel is precision, instrument-inspected for absolute straightness and, air gauged for maximum uniformity to yield the greatest accuracy possible. Land and groove tolerance from breech to muzzle can vary only .0001". Only a barrel that meets these demanding criteria wears the XX Premium stamp.

Click here to view contour specifications.

Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. The Douglas 30 Caliber barrel is air-gauged and instrument-inspected for straightness and uniformity, ensuring high accuracy.
  2. It has a strict land and groove tolerance of only .0001" from breech to muzzle, earning it the XX Premium stamp.
  3. Constructed from chrome moly steel or stainless steel, this #7 contour barrel is 27½" long and comes as an unfinished 30" blank.

Attributes

  • Caliber: 30 Caliber (.308)
  • Contour: #7
  • Material: Chrome Moly Steel
  • Style: Air-Gauged
  • Twist: 1-10
  • Delivery weight: 2.812kg
  • Shipping height: 25mm
  • Shipping width: 28mm
  • Shipping length: 699mm

Item details

Made in USA
US export classification: 0A501.c

Customers reviews

Customer ratings (3)

5 / 5
Definitely recommended

Brownells USA 50 years with Douglas barrels 24/11/2013

I used my first Douglas barrel in a 30-06 Mauser rifle in 1964. I still have the rifle and a few other rifles in 7mm and 44 (44-40) calibers. They still perform beautifully. I have recommended they to several friends and they are as pleased as I am.

Definitely recommended

Brownells USA Excellant barrel, good twist rate. 24/10/2009

The twist rate is excellant for the 168 grn. matchking .308

Alternative items

Discover the AIR-GAUGED PREMIUM BARREL by DOUGLAS! 🎯 Precision-crafted for unmatched accuracy, perfect for your next rifle build.
DOUGLAS
DOUGLAS 30 CALIBER 1-10 TWIST X-LONG UNTURNED BLANK 1.250 DIAMETER
"AIR-GAUGED" PREMIUM BARREL
Rifle Barrel Blanks | Barrel Blanks
5
In stock - Is a 'Call to order' product.
£439.90 £359.90 - £479.90
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