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Bartlein - Stainless Steel Barrel Blank - .25 Cal

Bartlein Barrels

Bartlein - Stainless Steel Barrel Blank - .25 Cal

$449.00
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Not sure it fits? Call 1-970-242-6166 — you’ll talk to an expert who works with these parts every day.

Achieve unmatched precision with Bartlein Stainless Steel Barrel Blank in .25 Cal! Renowned for its match-grade quality, it's perfect for custom rifle builds.

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Overview

A cut-rifled .25 caliber match blank in the contour and twist your build needs

The Bartlein .25 caliber stainless barrel blank is a single-point cut rifled 5R match blank for a gunsmith to chamber, thread and crown for your bolt action. It is offered in five contours, 1:7 or 1:10 twist, and 26" or 28" lengths by contour. Any cartridge on the .25 bore can be chambered in it, from .25-06 Remington and .257 Roberts to .257 Weatherby.

Single-point cut rifled and hand lapped

Bartlein uses single-point cut rifling only, never a button, and hand laps every blank when it is finished. The .250" bore and .257" groove are Bartlein's standard .25 caliber dimensions.

5R rifling, five lands

Five lands means no land sits directly opposite another, and the land sides are angled instead of the 90 degree corner of conventional rifling. Bartlein says the jacket distorts less on the jump into the rifling, and rates 5R at up to 5% less BC loss from jacket deformation.

Five contours available

The #3 Heavy Sporter, #7 MTU Straight Taper, #13 Varmint/Sendero, #14 M24/M40 and 1.25" Straight Taper, in your choice of 1:7 or 1:10 twist.

Two twists: 1:7 and 1:10

The 1:7 twist stabilizes the heavier .25 caliber bullets. The 1:10 twist favors the lighter end of the caliber. Pick the twist for the bullets you plan to run.

Ships 1" longer than the length you order

Bartlein makes every blank 1" over the chart length so the gunsmith can cut the bell mouth off the muzzle and crown it. Lengths on this page are 26" or 28" finished.

Specifications

Barrel

Caliber.25
Bore and groove.250" x .257"
SteelStainless steel
Rifling5R, single-point cut, hand lapped
Twist options1:7 or 1:10
Length options26" on most contours; 28" on 1.25" Straight Taper
Blank length1" over the length ordered, for cutting and crowning
FinishBlank: unchambered, unthreaded, uncrowned

Contours available here

#3 Heavy Sporter26" length, 1:7 or 1:10 twist
#7 MTU Straight Taper26" length, 1:7 or 1:10 twist
#13 Varmint/Sendero26" length, 1:7 or 1:10 twist
#14 M24/M4026" length, 1:7 or 1:10 twist
1.25" Straight Taper28" length, 1:7 or 1:10 twist
Other contoursAvailable to order

Cartridge examples

.25-06 RemingtonModern, widely available, uses .25 OBM for .30-06 brass
.257 RobertsClassic, uses .25 OBM for .308 brass
.257 WeatherbyMagnum action, higher velocity

Fitment

Will it work with your build?

Works with

  • Every .25 caliber cartridge: .25-06 Remington, .257 Roberts, .257 Weatherby and others
  • Bolt action rifles, once a gunsmith has chambered, threaded, crowned and fitted it
  • Muzzle threads of 1/2x28, 5/8x24 or 3/4x24, cut by your gunsmith

Will not work with

  • Any rifle as shipped: this is a blank, not a pre-fit or drop-in barrel
  • Pre-fit or gas gun installs: Bartlein makes no pre-fit or gas gun barrels

Gunsmith fitting and a flat shipping charge. This blank must be chambered, threaded, crowned and installed by a certified gunsmith. Rifle barrels and barreled actions ship for a flat $14.95 per order regardless of quantity and do not qualify for free shipping.

Detail

Fitting it and the fine print

Which contour and length do I order?

Match the contour to the barrel channel of your stock or chassis and to the weight and profile you want to carry. Your gunsmith turns the shank to fit the action. Bartlein offers five contours here; other contours are available by special order.

The length you pick is the finished length. Bartlein makes the blank 1" longer, so a 26" order ships at 27", allowing the gunsmith to cut and crown the muzzle.

Which twist, 1:7 or 1:10?

The 1:7 twist is faster and stabilizes heavier .25 caliber bullets better. The 1:10 twist is standard on many .25 cartridges and favors the lighter bullet range. If you are building for a specific cartridge and bullet weight, choose the twist your gunsmith or the bullet manufacturer recommends.

What does 5R rifling mean, and does it matter for .25 caliber?

Bartlein offers three rifling styles, all single-point cut: 4-groove, 5R and Conventional-5. This blank is 5R. In 5R the bore has five lands, so no land sits directly opposite another, and each land meets the groove on an angle instead of the 90 degree corner of conventional rifling. Bartlein says the bullet jacket distorts less as it enters the rifling, and quotes testing showing BC loss from jacket deformation up to 5% lower than with conventional styles.

Bartlein also says the style or number of grooves has no real bearing on accuracy or barrel life. Their one exception is light-for-caliber bullets in .224 (35 to 60 gr) and 6mm (65 to 68 gr), which do not like 5R; that exception does not apply to .25 caliber.

Why does the blank arrive an inch longer than I ordered?

Every Bartlein blank is hand lapped after rifling, and lapping can leave a slight bell mouth at both ends. Bartlein builds a minimum 1.0" muzzle cut into the blank profile so the gunsmith can remove it when cutting to length and crowning. At the breech, chambering takes the bell mouth out on a centerfire blank, so nothing extra is needed there.

What voids the Bartlein warranty?

Bartlein lists three things: fire lapping, including any compound made for it such as Tubb Dust. Any abrasive compound in the bore or on a brush, including Iosso, Witch's Brew, JB Bore Polish (red), Thorroclean, Flitz and CLR. And a brush on a drill run back and forth through the bore.

Caliber
.25
Bore and groove
.250" x .257"
Rifling
5R single-point cut
Twist
1:7 or 1:10
Lengths
26" or 28"
Steel
Stainless

Works with

  • .25-06, .257 Roberts, .257 Weatherby
  • Bolt actions, gunsmith fitted

Will not work with

  • Any rifle as shipped (blank)
  • Pre-fit or gas gun installs

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Shipping

Free same day shipping

Most orders over $199 ship free. We ship same day on all in-stock orders received before 14:00 Mountain Time. Free Shipping orders use standard ground and typically deliver in 1 to 4 days. Excludes international orders, Alaska and Hawaii, and select oversized items. All orders valued over $1,000.00 ship signature required.

Overnight & expedited shipping

If you need an item fast, cost-effective expedited options are available at checkout. Most expedited orders ship via FedEx or Overnight Mail.

Local customers

We are in 2317 Grand Park Dr Unit 2B Grand Junction, CO 81505 and we stock every item we sell. We love seeing customers and encourage you to stop by — just leave a comment in the order notes during checkout.

International shipping

We ship to international shoppers in 82 countries registered with EasyExport®. Registration is free and EasyExport does not share your information, and you can register before or after you shop. See International Export for details.

Returns

Not quite perfect? Red Hawk will make it right, no matter what. Guaranteed. Most items have a 30-day window from the day the product was delivered to you. Excluded are ammo and ORM-D products, custom ordered items, items not in original condition, and international orders. Every item we sell also carries a manufacturer warranty, and we only work with manufacturers who stand behind their products.

Read the full shipping and returns policy

Common questions

How do I know the items I'm buying are compatible?

Check the Fitment section above — it lists what this part works with and what it does not. If you are still unsure, call 1-970-242-6166 or use the chat icon at the bottom right of the page — our team builds precision rifles with these parts every day.

Where are you located?

2317 Grand Park Dr Unit 2B Grand Junction, CO 81505. We ship every single order from our own warehouse and take pride in being part of our local hunting and competition shooting community.

I can't find the configuration I need — can you special order it?

Absolutely. Call 1-970-242-6166.

What if there is an issue with the product I ordered?

We will make it right, no matter what. We only carry products from top-tier manufacturers who stand behind them.

Which items need to ship to an FFL?

Only serialized firearm actions and receivers require an FFL transfer. Barrels, stocks, triggers and accessories ship straight to your door.

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