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Gunsmith Tools Barrel Tools Barrel Blanks DOUGLAS .30 1-10 TWIST CM #4 CONTOUR ULTRA RIFLED BARREL Support

Discover unmatched accuracy with Douglas Match-Grade Barrels, crafted for precision and smoothness, perfect for your rebarrelling projects.
-10 %

DOUGLAS .30 1-10 TWIST CM #4 CONTOUR ULTRA RIFLED BARREL

237308104

Filters:

Variations
Filters:
Variations:

Variations:

-10 %
Discover unmatched accuracy with Douglas Match-Grade Barrels, crafted for precision and smoothness, perfect for your rebarrelling projects.
CONTOUR #4 - .30 1-10 TWIST CM #4 CONTOUR ULTRA RIFLED BARREL
304.9 GBP 4 £304.90 * £339.90
In stock
Caliber: 30 Caliber (.308) Contour: #4 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237308104
In stock
304.9 GBP 4 £304.90 * £339.90
-10 %
Experience unmatched accuracy with Douglas 6mm #4 Contour Ultra Rifled Barrel, crafted for precision and smoothness, ideal for your rebarrelling projects.
CONTOUR #4 - 6MM 1-10 TWIST CM #4 CONTOUR ULTRA RIFLED BARREL
394.9 GBP 1 £394.90 * £439.90
In stock
Caliber: 243/6 mm (.243) Contour: #4 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237243104
In stock
394.9 GBP 1 £394.90 * £439.90
-10 %
Douglas .257 1-10 Twist CM #4 Contour Ultra Rifled Barrel offers unmatched accuracy, premium-grade construction, and superb smoothness for your rebarrelling needs.
CONTOUR #4 - .257 1-10 TWIST CM #4 CONTOUR ULTRA RIFLED BARREL
304.9 GBP 3 £304.90 * £339.90
In stock
Caliber: 25 Caliber (.257) Contour: #4 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237257104
In stock
304.9 GBP 3 £304.90 * £339.90
-10 %
Discover the Douglas #4 Contour Ultra Rifled Barrel, featuring unmatched accuracy, premium-grade construction, and button rifling for superior smoothness.
CONTOUR #4 - 6.5MM 1-9 TWIST CM #4 CONTOUR ULTRA RIFLED BARREL
304.9 GBP 2 £304.90 * £339.90
In stock
Caliber: 264/6.5 mm (.264) Contour: #4 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-9 Product no.: 237264094
In stock
304.9 GBP 2 £304.90 * £339.90
-10 %
Douglas #4 Contour Ultra Rifled Barrel offers unmatched accuracy, smooth button rifling, and premium-grade materials for your rebarrelling needs.
CONTOUR #4 - 7MM 1-9 TWIST CM #4 CONTOUR ULTRA RIFLED BARREL
304.9 GBP 1 £304.90 * £339.90
In stock
Caliber: 284/7 mm (.284) Contour: #4 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-9 Product no.: 237284094
In stock
304.9 GBP 1 £304.90 * £339.90
-10 %
Douglas .338 Match-Grade Barrel Blanks offer unmatched accuracy and smoothness, crafted from premium 4140 Chrome moly and stainless steel for superior performance.
CONTOUR #4 - .338 1-10 TWIST CM #4 CONTOUR ULTRA RIFLED BARREL
394.9 GBP 2 £394.90 * £439.90
In stock
Caliber: 338 Caliber (.338) Contour: #4 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237338104
In stock
394.9 GBP 2 £394.90 * £439.90
-10 %
Experience unmatched accuracy with the Douglas .358 Match-Grade Barrel, featuring button rifling and stress relief for superior performance in rebarrelling projects.
CONTOUR #4 - .358 1-12 CM #4 CONTOUR ULTRA RIFLED BARREL
304.9 GBP 5 £304.90 * £339.90
In stock
Caliber: 35 Caliber (.358) Contour: #4 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-12 Product no.: 237358124
In stock
304.9 GBP 5 £304.90 * £339.90
-10 %
Upgrade your firearm with the Douglas .224 ultra rifled barrel, featuring unmatched accuracy, premium-grade materials, and precision manufacturing for superior performance.
CONTOUR #4 - .224 1-14 TWIST SS #4 CONTOUR ULTRA RIFLED BARREL
429.9 GBP 1 £429.90 * £479.90
In stock
Caliber: 22 Caliber (.223-.224) Contour: #4 Material: Stainless Steel Style: Ultra RIfled Twist: 1-14 Product no.: 237924144
In stock
429.9 GBP 1 £429.90 * £479.90
-10 %
Experience unmatched accuracy with Douglas Double XX premium barrels, featuring button rifling and tight tolerances for superior performance in rebarrelling projects.
CONTOUR #4 - 7MM 1-9 TWIST SS #4 CONTOUR ULTRA RIFLED BARREL
379.9 GBP 3 £379.90 * £419.90
In stock
Caliber: 284/7 mm (.284) Contour: #4 Material: Stainless Steel Style: Ultra RIfled Twist: 1-9 Product no.: 237928094
In stock
379.9 GBP 3 £379.90 * £419.90
-10 %
Douglas .30 1-10 Twist SS #4 Contour Ultra Rifled Barrel offers match-grade precision, button rifled smoothness, and stress-relieved construction for exceptional accuracy.
CONTOUR #4 - .30 1-10 TWIST SS #4 CONTOUR ULTRA RIFLED BARREL
379.9 GBP 2 £379.90 * £419.90
In stock
Caliber: 30 Caliber (.308) Contour: #4 Material: Stainless Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237930104
In stock
379.9 GBP 2 £379.90 * £419.90
304.9 429.9 10 GBP
-10 %
MSRP £339.90
304.9 GBP £304.90

Prices inclusive of duty & VAT.

Product no.: 237308104

Mfr. No.: 3010CM4

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 4 pcs. in the USA warehouse
5/5 - 1 Customers

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.
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304.9 429.9 10 GBP
Description Specification Customers reviews Accessories

DOUGLAS .30 1-10 TWIST CM #4 CONTOUR ULTRA RIFLED BARREL

-10 %
MSRP £339.90
304.9 GBP £304.90

Prices inclusive of duty & VAT.

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

Description:

Experience unmatched precision with the CONTOUR #4 from DOUGLAS.

The CONTOUR #4, DOUGLAS .30 1-10 TWIST CM #4 CONTOUR ULTRA RIFLED BARREL is a premium choice for any rebarrelling project, crafted by the U.S.'s oldest barrel maker, Douglas. Known for their Match-Grade Barrel Blanks, these barrels offer exceptional accuracy and meticulous manufacturing care.

Product Features:

  • Famous Douglas Double XX premium-grade barrels
  • Button rifled for unrivalled smoothness
  • Tolerances for groove diameter and straightness held to .0005"
  • Available in calibers ranging from .22 through .338 with 6 grooves
  • .358, .375, and .458 barrels feature 8 grooves
  • No straightening process applied; all barrels are stress relieved

Specifications:

Manufactured from 4140 Chrome moly and stainless steel. The "Finished" dimensions are indicated in the chart. Unturned Blanks will be .025" (.63mm) to .050" (1.3mm) larger in diameter and 1-½" (3.8cm) longer than shown. Please note that these barrels are 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 indicated 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. Note that these items are not shipped prepaid.



Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. Douglas Double XX barrels offer proven accuracy and are meticulously manufactured, with a focus on smoothness and precise tolerances.
  2. Barrels are available in various calibers and twists, with .30 caliber barrels featuring a #4 contour and a 1-10 twist rate.
  3. Barrels come as unturned blanks, not threaded or chambered, and require full payment for special orders, which are non-cancelable and non-refundable.

Attributes

  • Caliber: 
    30 Caliber (.308)
  • Contour: 
    #4
  • Material: 
    Chrome Moly Steel
  • Style: 
    Ultra RIfled
  • Twist: 
    1-10
  • Delivery weight: 1.52kg
  • Shipping height: 28mm
  • Shipping width: 28mm
  • Shipping length: 699mm

Item details

Made in USA
US export classification: 0A501.c

Customers reviews

Customer ratings (1)

5 / 5
Definitely recommended

Brownells USA I will buy this product again and again 06/12/2011

Bore was beautifully finished, .0001 straight from end to end. Groove diameter was a few 10ths under bullet diameter and .0001 taper from breach to muzzle, (3573 – 3572 @ muzzle) giving excellent gas seal! Best 35 cal barrel I've seen yet!

Variations:

-10 %
Discover unmatched accuracy with Douglas Match-Grade Barrels, crafted for precision and smoothness, perfect for your rebarrelling projects.
CONTOUR #4 - .30 1-10 TWIST CM #4 CONTOUR ULTRA RIFLED BARREL
304.9 GBP 4 £304.90 * £339.90
In stock
Caliber: 30 Caliber (.308) Contour: #4 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237308104
In stock
304.9 GBP 4 £304.90 * £339.90
-10 %
Experience unmatched accuracy with Douglas 6mm #4 Contour Ultra Rifled Barrel, crafted for precision and smoothness, ideal for your rebarrelling projects.
CONTOUR #4 - 6MM 1-10 TWIST CM #4 CONTOUR ULTRA RIFLED BARREL
394.9 GBP 1 £394.90 * £439.90
In stock
Caliber: 243/6 mm (.243) Contour: #4 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237243104
In stock
394.9 GBP 1 £394.90 * £439.90
-10 %
Douglas .257 1-10 Twist CM #4 Contour Ultra Rifled Barrel offers unmatched accuracy, premium-grade construction, and superb smoothness for your rebarrelling needs.
CONTOUR #4 - .257 1-10 TWIST CM #4 CONTOUR ULTRA RIFLED BARREL
304.9 GBP 3 £304.90 * £339.90
In stock
Caliber: 25 Caliber (.257) Contour: #4 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237257104
In stock
304.9 GBP 3 £304.90 * £339.90
-10 %
Discover the Douglas #4 Contour Ultra Rifled Barrel, featuring unmatched accuracy, premium-grade construction, and button rifling for superior smoothness.
CONTOUR #4 - 6.5MM 1-9 TWIST CM #4 CONTOUR ULTRA RIFLED BARREL
304.9 GBP 2 £304.90 * £339.90
In stock
Caliber: 264/6.5 mm (.264) Contour: #4 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-9 Product no.: 237264094
In stock
304.9 GBP 2 £304.90 * £339.90
-10 %
Douglas #4 Contour Ultra Rifled Barrel offers unmatched accuracy, smooth button rifling, and premium-grade materials for your rebarrelling needs.
CONTOUR #4 - 7MM 1-9 TWIST CM #4 CONTOUR ULTRA RIFLED BARREL
304.9 GBP 1 £304.90 * £339.90
In stock
Caliber: 284/7 mm (.284) Contour: #4 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-9 Product no.: 237284094
In stock
304.9 GBP 1 £304.90 * £339.90
-10 %
Douglas .338 Match-Grade Barrel Blanks offer unmatched accuracy and smoothness, crafted from premium 4140 Chrome moly and stainless steel for superior performance.
CONTOUR #4 - .338 1-10 TWIST CM #4 CONTOUR ULTRA RIFLED BARREL
394.9 GBP 2 £394.90 * £439.90
In stock
Caliber: 338 Caliber (.338) Contour: #4 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237338104
In stock
394.9 GBP 2 £394.90 * £439.90
-10 %
Experience unmatched accuracy with the Douglas .358 Match-Grade Barrel, featuring button rifling and stress relief for superior performance in rebarrelling projects.
CONTOUR #4 - .358 1-12 CM #4 CONTOUR ULTRA RIFLED BARREL
304.9 GBP 5 £304.90 * £339.90
In stock
Caliber: 35 Caliber (.358) Contour: #4 Material: Chrome Moly Steel Style: Ultra RIfled Twist: 1-12 Product no.: 237358124
In stock
304.9 GBP 5 £304.90 * £339.90
-10 %
Upgrade your firearm with the Douglas .224 ultra rifled barrel, featuring unmatched accuracy, premium-grade materials, and precision manufacturing for superior performance.
CONTOUR #4 - .224 1-14 TWIST SS #4 CONTOUR ULTRA RIFLED BARREL
429.9 GBP 1 £429.90 * £479.90
In stock
Caliber: 22 Caliber (.223-.224) Contour: #4 Material: Stainless Steel Style: Ultra RIfled Twist: 1-14 Product no.: 237924144
In stock
429.9 GBP 1 £429.90 * £479.90
-10 %
Experience unmatched accuracy with Douglas Double XX premium barrels, featuring button rifling and tight tolerances for superior performance in rebarrelling projects.
CONTOUR #4 - 7MM 1-9 TWIST SS #4 CONTOUR ULTRA RIFLED BARREL
379.9 GBP 3 £379.90 * £419.90
In stock
Caliber: 284/7 mm (.284) Contour: #4 Material: Stainless Steel Style: Ultra RIfled Twist: 1-9 Product no.: 237928094
In stock
379.9 GBP 3 £379.90 * £419.90
-10 %
Douglas .30 1-10 Twist SS #4 Contour Ultra Rifled Barrel offers match-grade precision, button rifled smoothness, and stress-relieved construction for exceptional accuracy.
CONTOUR #4 - .30 1-10 TWIST SS #4 CONTOUR ULTRA RIFLED BARREL
379.9 GBP 2 £379.90 * £419.90
In stock
Caliber: 30 Caliber (.308) Contour: #4 Material: Stainless Steel Style: Ultra RIfled Twist: 1-10 Product no.: 237930104
In stock
379.9 GBP 2 £379.90 * £419.90

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