I recently purchased a SAKO L691 action. I plan to have a rifle built to try out an idea I have. I found a new-old-stock Bell and Carlson stock that it fits perfectly. I now need a barrel. Is there a take-off barrel from Winchester M70, Remington 700, or some other rifle that can be modified for use with the SAKO action? Is it feasible to cut the threads off a pre-threaded heavy barrel and re-thread it for the SAKO?

Why Phuque around with a take-off barrel. For the money you put into a great action don't put a cheap barrel on it.

Well I said take-off barrel but what I have in mind is a new barrel. I see Kreiger, PacNor, Hart, Lilja, etc. pre-threaded barrels for sale. I can't find one for the SAKO. So I am wondering if I can use one made for another action or, perhaps, if one can be cut and re-threaded for the SAKO.

I have a Shilen on my Sako AV, A gunsmith can thread any of the barrels you mentioned.

BigB

Remington and weatherby have the same thread pitch and slightly larger thread diameter.
You could buy a pre threaded barrel and turn it back to fit.
But as stated I think you will spend the same amount of money to fix a pre threaded barrel as to use a contoured blank.

Shilen barrels are great. Check out the following for the best prices: http://www.thebarrelman.com/

thery sure look purty when you use a new barrell................ thats my new 257 bob ackleyimproved and here is my
old 270 thast i have had several years............... get a new barrel. hell everyone likes a tight screw....on their threads.

I've compiled a short list on barrel threads.
I don't know if there are any errors in it, but here it is.
It looks like the sako is a 1x16.
Ruger M77, Win M70 might be worth looking into.

Rifle action dimensions:

Action threads length Reciver OD? other
BBK-02 1.1x12

Browning A-bolt 1x32

CZ 550 1.1x12.7
CZ 527 mini-mauser

Enfield M-17 x10 square
Enfield SMLE

Marlin 336 .775x12 square .65” & .84” hood
Marlin 1895 45-70 same as 336, 450 may have been changed to a v thread.

Mauser lrg. Ring 1.1x12 1.41”
Mauser sm. Ring .98x12

Mosin Nagant .97”x16 or 1x16”

MRC 1999 1x16 UNF 2B .75

Rem 700 1 1/16”x16 .885
1.0625x16
Rem Rolling block
No. 1 smokeless 1.055x12 square 1.43”

Ruger 77 1x16 1.41”
Ruger no. 1 1x16”

Sako 1x16 ?

Savage 110 < 2001 1.05x20
Short magnum>2001 1.125x20 G series, noticeable step after threads
CRF 1 1/16x20
1.0625x20
210 Bolt Shotgun 1.1x20?
Savage 99

Steyr M-95 1.020x14 tpi V .693” shank

Weatherby mk V 1.06x16 .7
1 1/16x16

Win 70 1x16
Win 94 .809x20
Win 94 BB .875x28? .635” shank

I got a Sako L61R re-barrelled with a Douglas barrel in 280 Ackley Imp & it is a great rifle.

I would not bother with a re-worked old threaded barrel. You are better off even getting a new pre-threaded Lothar Walther barrel.