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Barrels

Locally manufactured pull button barrels from carbon and stainless steel

Barrel Types

Both carbon steel and stainless steel produce accurate barrels. The choice is yours. Any barrel is only as good as its metallurgical and physical properties and the precision of the manufacturing process. That is why we use only the best quality steels in the world and take the upmost care during manufacturing. Remember that a barrel is a consumable product that needs to be replaced when it get worn. We can manufacture barrels up to 32”(812mm). Regularly inspection of your barrel for throat erosion, worn lands or pit marks as a result of rust. Then select a new barrel with the correct rifling twist for your needs. Bullet and barrel manufacturers often use different tolerances. So finding the right combination of bullet size and bore diameter is important important because accurate shooting is not only about holding the rifle steady when you fire. For the gunsmiths please use the correct oil for the chambering. We can supply you with the correct sulfur base cutting oils, especially for the hard stainless steel.

Carbon Steel Barrels

We use the Austrian Böhler Uddeholm steel because the reputation of this well-known steel speaks for itself. The hardness of this steel is 32 Rockwell or 300HB. On average most rifle barrels have a Rockwell hardness of 28. Carbon steel barrels tend to foul a little easier (copper-fouling) than stainless steel barrels but even so, the fouling can be managed easily.

Stainless Steel Barrels

17-4PH

The norm for stainless steel barrels is 416R but we use 17-4PH from an Italian supplier. This steel is normally used in receivers and also has a hardness of 32 Rockwell or 300HB. The 416R steel has a hardness of 28 Rockwell.

We prefer 17-4PH because it contains 2.7% more chrome than 416R and has a 4.5% nickel content. These properties result in a very smooth, mirror-like finish when the rifling button is pulled through the barrel. Not only is 17-4PH known for its machinability, but also for its marginal “steel memory”, resistance against corrosion, impact, and resistance against wear. As mentioned, stainless steel barrels foul less (less copper-fouling) than carbon steel barrels and we at Eagle Barrels feel that 17-4PH is currently one of the best barrel steel available.

416R

In the rifle barrel world 416R need no introduction. RUCIBLE 416R is a hardenable chromium stainless steel particularly suited for use in high quality precision rifle barrels. This grade has good machinability and, because of closely controlled chemistry and processing techniques, may be machined and lapped to a high finish, which is important for bore accuracy. We managed to source steel from the same mill that supply Krieger and Broughton barrels .The harness of the steel are +-28 Rockwell.

Carbon fibre Barrels

Carbon fibre has been developed mainly for proportional weight and strength properties. When employed in a rifle barrel the benefits extend beyond reducing weight and increasing strength. We turn down your match-grade carbon or stainless-steel barrel blanks to a significantly reduced profile to reduce weight. The contoured barrel is then wrapped with high-strength, aerospace-grade carbon fibre and impregnated with resin. Carbon fibre has a unique ability to diffuse heat along the length of the barrel. The effective heat transportation results that the barrels cool down faster. This result that the barrel maintains accuracy over longer sessions of fire and longer barrel live.

If your choice is for:

  • Durability
  • 20-40% lighter than similar contours
  • Better heat dissipation
  • Heat reduction for longer lasting barrels
  • Better barrel stiffness
  • No point-of-impact shift during high-volume fire
  • Reduced harmonic barrel vibration

Do the right Thing

Combination/
Structured Barrels

The heavy amour barrel manufacturers struggled for many years with the weight of long barrels, the strength and stiffness.  They realized to sleeve a thin barrel they achieve both weight reduction, strength and stiffness

We applied the same principal by sleeving a fluted barrel. The fluting helps with heat evacuation and weight reduction. The sleeve and flute combination form a strong I-beam configuration with an estimated 70% increase in stiffening of the barrel and thus make it almost harmonically dead. We placed breather wholes at the chamber to create a venturi draft to cool down the chamber up to 30%. This gives the barrel killer (the throat) a 30% life extension. The weight of the barrel is almost the same as a heavy varmit barrel. The Combination of the sleeve, structural strength and heat depensation makes this a must have barrel.

Important Notice:


Please contact us for your twist requirements.

There are constantly new twists added that might not reflect on the web.

Calibre names vs Bore and groove diameters

We offer a good range of calibres, twist rates and type of lands but expand our range regularly so please let us know if you have any special requests. We are currently working on five-groove, canted buttons and will at a later stage also add a three-groove version. 5 Groove canted lands have opposing groove and lands which results in less bullet jacket deformation and better gas seal. Slope lands clean easier. However, irrespective of your preferences pertaining to rifling twist, type of grooves, etc, we guarantee accurate barrels. Our company policy is: “Consistency brings accuracy.”

Calibre names vs Bore and groove diameters

The naming of calibres is a very confusing subject. Some calibres are named after the bore dimensions and some after the groove dimensions. For some calibres the Imperial system is used and for some the metric system but even that can be very confusing because the true bore or groove diameters are not always used.

Typical 6 Groove

Typical 5 Groove

Canted Lands(5R)

Typical 4 Groove

0.20 Rimfire Magnum

  • Bore: 0.199″/5.05mm | Groove: 0.204″/5.18mm
  • Available Twist: 1-9”,1-10” 5R Groove
  • Calibre: 204 Ruger, 20 Practical, 20 Vartarg, 20 Tactical

0.22 Rimfire Magnum

  • Bore: 0.218″/5.53mm | Groove: 0.222″/5.64mm
  • Available Twist: 1-16” 6 Groove
  • Calibre .22 Winchester Magnum

.22 Centrefire

  • Bore: 0.219″/5.56mm | Groove: 0.224″/5.69mm
  • Available twists:
    1-8(5R) 5 Groove

    1-7.5”, 1-8”,1-9”,1-10”,1-12”,1-13” 6 Groove

  • Calibres: .218 Bee, .22 Hornet, .22 Swift, .222 Remington, .22-250 Remington, .22-250 Remington Ackley, .22-250 Remington Match, .223 Remington, .23 Remington Ackley Improved, .223 Remington (.244 neck), .22P, .22PPC, .221 Remington Fireball, .223 Wylde, 5.56 NATO, .225 winchester, .22 BR, .22-243 Middlestead, .22 Nosler.

.243/6mm

  • Bore: 0.237″/6mm | Groove: 0.243″/6.17mm
  • Available twists: 
    1-7”, 1-7.5”, 1-8”(5R)   5 Groove
    1-8”, 1-9”, 1-10” ,1-13” 6 Groove 
  • Cartridges: 240 Gibbs, 243 Winchester, 243 Winchester Ackley, 244 Ackley, 240 Weatherby Magnum, 6 x 47 Lapua, 6mm BR Norma, 6mm BRX, 6mm Dasher, 6mm Remington, 6mm x 45, 6mm XC, 6mm Benchrest, 6mm-222 Remington, 6mm PPC, 6mm Grendel, 6mm-284 Winchester, 6mm-06 Springfield, 6mm-06 Ackley, 6mm Creedmoor

.25 Caliber

  • Bore: 0.250″/6.35mm | Groove: 0.257″/6.527mm
  • Available twists: 1-9″,1-10”, 6 Groove
  • Calibres: .25 ACP, .25-06 Rem, .25-06 Ackley, .257 Roberts, .257 Roberts Ackley, .257 Weatherby, .250 Savage, .257 STW

6.5/264 Caliber

  • Bore: .256″/6.50mm | Groove: .264″6.705mm
  • Available Twists: 
    1-7.5”, 1-8(5R) 5 Groove

    1-7”,1-8” 6 Groove

  • Cartridges: 6.5 Creedmoor, 6.5 STW, 6.5 Super LR/S, 6.5 TCU, 6.5 WSM, 6.5 RSAUM, 6.5 x 284 Winchester, 6.5 x 284 Lapua, 6.5 x 284 Norma, 6.5 x 300 Winchester, 6.5 x 47 Lapua, 6.5 x 55, 6.5-06, 6.5-06 Ackley Improved, 0.260 Remington, 6.5 Remington Magnum, 6.5 Grendel, 264 LBC, 0.264 Winchester Magnum,0. 260 Remington Ackley Improved,0. 26 Nosler

270 Caliber

  • Bore: .270″/6.85mm | Groove: .277″/7.03mm
  • Available Twists:

    1-10” 4 Groove
    1-9″ 6 Groove

  • Cartridges: .270 Winchester, 6.8 SPC, 6.8 Remington SPC II, .270 WSM, 0.270 Weatherby Magnum

.284”/7mm

  • Bore: .277″/7.03mm | Groove: .284″/7.24mm
  • Available Twists: 
    1-9″ 4 Groove
    1-8”,1-9” 5 Groove
    1-10″ 6 Groove
  • Cartridges: 7 x 57, 7 x 64, 7mm Remington Magnum, 7mm Remington Ultra Magnum, 7mm RSAUM, 7mm STW, 7mm TCU, 7mm WSM, 7mm-08, 280 Remington, 280 Remington Ackley, 0.284 Winchester, 7 x 64mm, 7-30 Waters, 7mm Dakota, 7mm Benchrest, 7mm LRM, 28 Nosler, 284 Winchester Gap

30/7.62 Caliber

  • Bore: .300″/7.62mm | Groove: .308″/7.82mm
  • Available Twists:
    1-10″1-13” 4 Groove
    1-9″,1-10″,1-11.5 (5R)  5 Groove
    1-7”,1-8”,1-9”,1-11.5″,1-12” 6 Groove
  • Cartridges: .30 Remington AR, 300 AAC Blackout, 300 H&H, 300 Remington Ultra Magnum, 300 Remington Ultra Match, 300 Remington Ultra Magnum Match, 300 Winchester Magnum, 300 WSM, 300 Norma, 30-06 Match, 30-06 Springfield, 30-06 Springfield Match, 30-40 Krag, 308 Winchester, 308 Winchester Match, 300 Weatherby Magnum, 30-378 Weatherby, 300 Winchester Magnum Match, 30-221 Fireball, 30-30 Winchester, 7.82 Warbird, 30 Nosler, 7.62 x 51 NATO

.303 Caliber

  • Bore: .303″/7.69mm | Groove: .311″/7.89mm
  • Available Twists: 1-10″ 5 Groove
  • Cartridges 7.62 x 39, 7.62 x 39 Match, 7.62 x 54R, 303 British

.318 Calibre

  • Bore: .318″/8.07mm | Groove: .334’/8.48mm
  • Available Twists: 1-10″ 6 Groove
  • Cartridges: .318 Westly Richards

8mm

  • Bore: .315″/8mm | Groove: .323″/8.2mm
  • Twists Available: 1-10″ 6 Groove
  • Cartridges: 325 WSM, 8 x 57 Mauser

.338 Caliber

  • Bore: .330″/8.38mm | Groove: .338″/8.58mm
  • Available Twists: 
    1-10”(5R) 5 Groove

    1-10” 6 Groove

  • Cartridges: .338 Edge Match, .338 Edge, .338 Federal, .338 Lapua, .338 Remington Ultra Magnum, .338 Winchester Magnum, .338-6, .338-06 Ackley, .338-378 Weatherby, .338 RCM, .340 Weatherby, .33 Nosler

.357 Caliber

  • Bore: .350/8.89mm″ | Groove: .357/9.07mm″
  • Available Twists: 1-10”6 Groove
  • Cartridges: .357 MAGNUM

9mm

  • Bore: .347″/8.81mm | Groove: .355″/9mm
  • Twists Available: 1-10″ 6 Groove
  • Cartridges: 9mm Luger, 380 ACP

9.3mm

  • Bore: .358″/9.09mm | Groove: .366″/9.3mm
  • Twists Available: 1-12″ 6 Groove
  • Cartridges: 9.3 x 62

.375 Caliber

  • Bore: .368″/9.35mm | Groove: .375″/9.52mm
  • Twists Available: 

    1-8”1-9”(5R) 5 Groove
    1-12” 6 Groove

  • Cartridges: 375 H&H, 375 H&H Magnum, 375 Remington Ultra Magnum, 375 Ruger, 38-55 Winchester, 38-72 Winchester

.416 Caliber

  • Bore: .408″/10.35mm | Groove: .416″/10.26mm
  • Available Twists:1-10”, 1-14″ 6 Groove
  • Cartridges: 416 Barrett, 416 Remington Magnum, 416 Taylor

.404 Caliber

  • Bore: .412″/10.46mm | Groove:  .424″/10.76mm
  • Available Twists: 1-14″ 6 Groove
  • Cartridges: .404 10.75×73:Norma; .404 Oryx 10.75×73

.45 Pistol

  • Bore: .442″/11.23mm | Groove: .451″/11.45mm
  • Available Twists: 1-10″ 6 Groove
  • Cartridges: 45 ACP, 45 Winchester Magnum, 450 Bushmaster

.450/.458 Caliber

  • Bore: .450″/11.43mm | Groove: .458″/11.63mm
  • Available Twists: 1-10″ 6 Groove
  • Cartridges: .458 Winchester Magnum, .458 Lott, 458 SOCOM, .45-70, 45 Raptor, 458 Express 3
    .458 African, .458 Majoor,458Sabi, .460 G&A,.50 Dekota, .450 Rigby Rimless, .460 Weatherby Magnum

.470 Calibre

  • Bore: .467″/11.86mm | Groove: .474”/12.03mm
  • Available Twists: 1-20″ 6 Groove
  • Cartridges: .470 Nitro Express

.50 Caliber

  • Bore: .50″/12.70mm | Groove: 51″/12.95mm
  • Available Twists: 1-15″ 8 Groove
  • Cartridges:.50 BMG,500A-Square,500 Jeffery, 500 Nitro Express,510 Wells Express
Custom gun barrels to your preferred specifications

Profile & Contouring

We offer a variety of barrel contours. Below is a guideline for the measurements for different contour styles. We will gladly custom-contour a barrel to your specifications.

Fluting

In firearms terminology fluting refers to the removal of material from a cylindrical surface, usually creating grooves. Fluting often means removing material from a rifle barrel but may also refer to the cylinder of a revolver or the bolt of a bolt-action rifle. Rifle barrels and revolver cylinders usually carry straight flutes while rifle bolts are often helically fluted. Sometimes rifle barrels are also helically fluted though. The main purpose of fluting is to reduce weight and to a lesser extent increase the rigidity of a barrel for its given total weight. Or to increase the outside surface area to make the barrel less susceptible to overheating. Although a fluted barrel might cool down a little faster a non-fluted barrel will always be more rigid and heat up slower – the price you pay, however, is additional weight.

Straight Fluting

Speckled Fluting

Slotted Fluting

Finishing

We do the following finishing: Gun blue Matt or Bright Coatings Black, Sand, Olive, Brown or Specials if requested

How to Order

Please eMail us a request. You can either pick it up or arrange a courier. We can arrange/advise you with a courier. Please eMail the EFT/ proof of payment.

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