Any old shot-out Sauer 202 barrels?

[AlexD]

Would any gunsmiths have any old shot out Sauer 202 barrels laying around that they are willing to sell for a nominal price? I would like to buy one or two barrels to extract a part out of them.

I am putting a pair of non-Sauer barrels, on a Sauer 202, chambered in something not on Sauer's list.

Sauer 202 barrels are a two part assembly: the barrel itself with its chambering, and the bolt engagement. The engagement seems to be heat shrunk into the barrel, i.e. heat the barrel, cool the engagement mechanism, and put the two together.

The barrels are easy to make, using any blank, and chambered in the usual way - there is no thread to cut even. The Sauer bolt engagement mechanism is a complex machined profile.

I wish to remove the engagement mechanism from a scrap barrel, and correct the dimensions I have, so the next one I make is the right size. It is not a simple matter of taking the measurement from the bolt. Making these engagement mechanisms involves a CNC lathe for the main profile and undercuts, then using wire EDM for the flute channels, followed by grinding the small flat on the end of the barrel that lines up with the location groove. The CNC nature of the EDM means I can't machine them, then try to fit, and machine off a bit more when they don't engage: it has to be right first time. Hence, I would like to get my mitts on a naked engagement mechanism by acquiring shot out barrels and turn them to remove the end of the barrel that covers the engagement.

 

[Tralle]

I had no idea a 202 barrel was a two piece construction. Could have fooled me.

I know gunsmiths in Denmark makes adapters to fit threaded barrels in 202's

Sauer Barrel Adaptor new match model

the new Match model Sauer Barrel Adaptor made by A.H.Larsen fits: Sauer 200/202 + SSG 3000 you can then freely choose which barrel / cal you...

ahlarsen.dk

 

[dasherman]

Having made many Sauer 202 barrels using the breech end of an old barrel by boring and threading it to make an adaptor I’ve not found they are shrunk in. No evidence while boring them out that they are two part construction as there would be a point while boring where the smaller barrel diameter would collapse leaving the outer part. This is found when boring out a barrel stub on a Steyr SSG that has a very long tenon to take advantage of a large surface area required with this type of fixing.

 

[gixer1]

The are not two piece certainly on the more common chamberings but can have that section commuting off and threaded to be made up to a non-Sauer barrel.

Regards,
Gixer

 

[Kiwiguy]

Schultz and Larsen also make complete barrels for Sauer 202 rifles. I have one chambered in
25-06 and is a tack driver.

 

[AlexD]

The are not two piece certainly on the more common chamberings but can have that section commuting off and threaded to be made up to a non-Sauer barrel.

I too thought they were one part, until I started trying to machine a barrel to fit a Sauer.

This is a photo of their .270 barrel. If you look at the flat on it as well, the two parts have two different etch patterns when I checked it using ferric chloride, so are two different parts.

The flat on the top has been ground after the insert was fitted, and you can the join line clearly, and also the end mill cutter path marks on the pocket which finish abruptly at the interface with the insert.

The objective here is to fit a barrel to a Sauer, not a Sauer barrel to something else, so threading does not help.

 

[gixer1]

Sorry, I’m not seeing the line you mention.

And I do understand the desired outcome as I have a 6.5CM 202.

 

[AlexD]

Schultz and Larsen also make complete barrels for Sauer 202 rifles. I have one chambered in
25-06 and is a tack driver.

Thanks, I never knew that S&L did them too.
I am chambering 6.5-284. I note that is on the S&L list.
This is useful info, as if it is actually one piece somehow, I would not be able to machine it: it would require a 4 axis mill with a 3ft throat depth between the quill and the bed, and some heavy duty fixturing, or a horizontal mill with CNC on the Z axis, neither of which I have.

Gixer1: I will post a pic of the area after etching - that barrel is in the workshop so will do that tomorrow.

 

[Kiwiguy]

Nor did I until I saw them advertised at Hunters House in Denmark. I contacted our NZ agent for S&L and my cousin and I ordered a 25-06 barrel each.
Schultz and Larsen make 6 5-284 (I have one on a Victory) barrels so it should be possible.
Good luck.[/QUOTE]

 

[JRF]

I’m fairly sure they are not two piece as Neil states, i’ve also machined quite a few and seen no evidence of two pieces. What you’re likely seeing is a result of the heat treatment process for the lugs, and different stages of machining. Just cut the old extension off, thread it, then fit a barrel as normal.

 

[Ronin]

As per Neil and Jack - my experience is the 202 and SSG 3000 barrels are manufactured in one piece

There are some on line videos if you search from Sauer that support this showing the formation and heat treatment of the barrel extension (the tenon and locking luck abutments) being machined

Andreas Larson in Denmark makes very high quality barrel extensions for this system in both Stainless and CM appropriate grade steels

They do require some machining to fit though - either way you have two options

Machine and old extension and create internal thread to accept a barrel of use the A H Larson extension

From factory they are a single machined part

Oh - just remembered - Lothar Walther also produce barrels (complete) for 202 with barrel extension

 

[AlexD]

I’m fairly sure they are not two piece as Neil states, i’ve also machined quite a few and seen no evidence of two pieces. What you’re likely seeing is a result of the heat treatment process for the lugs, and different stages of machining. Just cut the old extension off, thread it, then fit a barrel as normal.

The different heat treatment of the lugs compared to the barrel, may well explain the different crystal structure across the two sections. Thanks.

@Ronin, thanks, will contact Andreas Larson and Lothar Walther to explore the extension path in more detail.

Schultz & Larson have not responded yet to my query on whether the Victory barrels in 6.5-284 are available with the Sauer 202 lug engagements, but has been but a day.

 

[Ronin]

Walther will be able to make you one in that chambering

 

[Edinburgh Rifles]

whats to stop you running a 284 reamer into a 6.5x55 202 barrel?

have goosed 202 barrels here if you need a donor, but they are definitely one piece
We have done a few sauer and blaser builds on 202 and R93 donor barrel stubs