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Frequently Asked Questions

Barrel Only     Barreled Actions     Mk VII Rifle

Custom Barrel Division FAQ

Deep vs Short Chambering


When ordering a barrel only for most actions (Remington, Winchester, Ruger, etc.) it is important to know how you would like the chamber to be cut. When you or your gunsmith calculates headspace they take very precise measurements to ensure the barrel is fit correctly. We offer barrels either short chambered or long chambered to meet the needs of who will be fitting the barrel.

Short chambering means we cut most of the chamber and your gunsmith will cut the rest of the chamber with a finish reamer. If you order a barrel short chambered you are relying on the quality of the gunsmiths reamer for dimensions and tolerances. Most barrels are .050" short.

Deep chambered means we cut the chamber a bit deep into the barrel. Your gunsmith will face off the shoulder and hub to the correct length. This is the best option if your gunsmith does not have the correct reamer needed for short chambering.

Savage Pre-Fit barrels are fit with the barrel nut and appropriate headspace gauges so finish work is not needed. 

Rifling Method

We button rifle all of our barrels. All barrels are drilled close to the proper dimension then a secondary reaming operation to achieve the proper internal dimension. The final step is rifling then they are stress relieved a second time.  

Savage 220

We are now able to manufacture barrels for the Savage 220 slug gun. Barrels top out at 24” in length with a 1-24” twist. For fitting with the Savage barrel nut we make either the Savage Varmint or Savage Bull contour. They can also be fit without the Savage barrel nut with our contour 3.5 Heavy Varmint or contour 5 Heavy Bull. Fluting is available on any contour. Fitting service is available.

Ruger ® 10/22® Barrels

10/22® barrels are all cambered with Bentz style chambers. They will function reliably with both match ammunition and the bulk varieties. We do not recommend using hyper-velocity ammunition. You cannot hurt the barrel with the ammunition. Your action (receiver) on the other hand might give you issues depending on the velocity of the ammo you attempt to use. The Ruger® 10/22® is a semi auto blowback design action. The pressure created when the round is fired in the chamber forces the bolt back which extracts your round and then ejects the spent cartridge case.

If you shoot “Hyper” velocity ammo in this design of rifle, i.e. CCI Stingers, Remington Yellow Jackets, etc. there may be too much pressure generated and the action will attempt to cycle too fast. This can lead to jamming. The empty case might not clear the chamber before the bolt slams forward tying to chamber the next round. Also this higher pressure can add wear to the aluminum receiver.

If you shoot subsonic or low velocity ammo in the 10/22 and the springs are a little heavier in your particular rifle there might not be enough energy to properly cycle the action, again there can be jams. 

Military Threads

When threading a barrel to ship as a barrel only order we intentionally cut the threads a couple thousandths small. Since military actions have so much variation this helps in the event that the action you are fitting the barrel to is undersized. If you have the old take off barrel you can ship it to us and we can take measurements off the old barrel and cut the new one to match. 

Excluded Actions

We can make barrels for most centerfire bolt action rifles but there are some exceptions. We do not offer barrels for Mosin Nagant, SMLE, Carcano, Mannlicher–Schönauer, French MAS, and any open rear bridge Mauser. There is simply too much variation in the dimension and build quality.

Stock Fitting

We do not offer stock fitting for barreled actions.

Note Regarding Aftermarket Barrels

While many of our contours are designed to be very close to commercial rifle contours, when using an aftermarket barrel do note there is often some stock work to be done. Remington and Savage drop in barrels often do not require any stock work at all. Barrel contour duplication will be very close to the original barrel, however some stock inletting may be needed. BEFORE ORDERING BE SURE YOU HAVE SELECTED THE CONTOUR YOU WANT. There is no continuity between the barrel manufacturers regarding barrel contours. Recontouring a barrel begins at $60 and can go up if the barrel was fit to an action or blued. Recontouring a barrel removes 1/2" from the muzzle end of the barrel. Fluted barrels/barrels with muzzle threads cannot be recontoured. 


Barrel Fitting Service FAQ

Barreled Action Fitting Service Instructions

We offer fitting services for the majority of bolt action, centerfire rifles. When sending in an action/barreled action please remove the stock and scope from the rifle. Also remove accessories such as rings and bases. Please do not send barreled actions in hard cases. If stocks or hard cases are sent they will be returned and the shipping cost will be added to the balance of the build.

Please see the Barrel Installation page for instructions and to download an order form to send with the firearm. 

Shipping Address

Barreled actions can be shipped to:

Custom Division
5312 Thoms Run Road
Bridgeville PA 15017

Stock Fitting

We do not offer stock fitting for barreled actions. If stocks are sent they will be returned and the shipping cost will be added to the balance of the build.

Magnum Alterations

Here at Shaw Barrels we offer magnum alterations on select 98 Mauser actions. Standard magnums only, no long mags, Noslers, Long Weatherby, or Remington Ultra Mags. Due to the higher pressures these calibers generate we can only perform the alteration on higher quality actions. Those include: German 98, 1909 Argentine, Czech VZ 24, FN Mauser, Dumoulin, and Interarms Mk X. Please call for specifics.

Siamese Mauser Information

Siamese Mauser alterations are available in 45/70 Government only. The alteration includes removing the ring from the front of the receiver and a small portion of the extractor/bolt face. Please note that the ORIGINAL FLOORPLATE is required for reliable feeding. When these actions were imported they were thrown in crates and the bottom metal frequently got mixed up with standard Mauser 98 parts.

93, 94, 95, 96 Mausers

We provide rebarreling services on most various small ring, cock on close Mausers. Since they are not designed for high pressure modern cartridges there are a limited number of calibers we can install. Cartridges such as 7x57, 8x57, 6.5x55, 250 Savage, 257 Roberts work well in these actions. Standard calibers such as 243/308/358 Winchester or other standard pressure rounds will generally work in all but 93's. Please note high pressure rounds like 220 Swift and 22-250 Remington will not work.There is an exception for the 96 Swedish Mausers since they are of higher quality. Call us for specifics.

Predrilled and Tapped Mausers

When we remove the old barrel from a Mauser that has been drilled and tapped we inspect the lug to ensure it was drilled correctly. This usually isn't an issue unless the face of the lug has been compromised. At that point we will return the action to the address it was shipped from.  


Mk VIl-Mk X Rifle FAQ

Weight of Rifle

The Mk VII-Mk X Rifle Sporter comes in at around 7.5 to 8.5 pounds depending on barrel contour and fluting options. The Mk VII-Mk X CS line are around the 11 pound range unloaded with no scope. Since it is impossible to know the exact weight of every configuration, the given weights are approximate.

Can I purchase just a barreled action?

Yes, we can provide you with a barreled action. When quoting a rifle on the gun builders simply subtract the cost of the stock from the total.

Scope Bases

The Mk VII Rifle uses bases designed for the Savage 10/110 series of rifles with round receiver/AccuTrigger. The Mk X has two integral Weaver pattern rail segments.

Can You Rebarrel My Mk VII-Mk X Rifle?

Yes, if your barrel is shot out and needs replacing, we can rebarrel your rifle to the same cartridge or a different one that is compatible with your action length. We will also rebed the stock if needed. Feel Free to contact us with details and pricing.

Do you make your own stocks?

We do not make our stocks in house. We purchase blanks and have them turned by an outside party. Since we are primarily set up to work on the metal parts, it is faster and easier to have a dedicated stock maker do the contouring of the blanks.

Can I specify a length of pull?

No, length of pull is a fixed 13.5”.