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Building a 7mm STW? need help

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Unread 03-22-2011, 02:55 PM
Silver Member
Join Date: Mar 2011
Location: Washington state
Posts: 105
Building a 7mm STW? need help

I am looking for a 7mm STW rifle. They are not easey to find unless you want a $2000.00 (and up) custom rifle. I have seen a few in Savage rifles which i guess were made by savage for a couple of years.
My question is this: How hard would it be to make one out of say...a 7mm rem. mag? or would another cartridge be a better starting point? (7mm WBY, 300 mag, 375 ?)
It would seem to me that I would'nt have to re-barrel the gun if I started with a 7mm mag..but admittedly I am a newby at this. Has anyone built one before?
Realisticly, what would it cost me beyond the price of the rifle?
Any help I could get on this subject would be great.
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Unread 03-22-2011, 03:34 PM
Platinum Member
Join Date: Apr 2010
Location: Allen, TX
Posts: 2,608
Re: Building a 7mm STW? need help

here's one...
Remington 700 Sendero SF 7mm STW : Bolt Action at GunBroker.com

fyi --- I have no affiliation. Caveat emptor.
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Unread 03-23-2011, 09:33 AM
TMR TMR is offline
Gold Member
Join Date: Mar 2006
Location: Elma, WA
Posts: 555
Re: Building a 7mm STW? need help

You can rechamber a 7 mag to 7 STW. Your smith may have to set the barrel back a couple of turns depending on how picky he is. Remington has a habit of oblong chambers and when a guy rechambers, you can actually see where the reamer will skip over a spot in the factory chamber. I generally set them back a couple threads then recut. Also, most match reamers will have a smaller neck diameter than factory and will leave a small step in the neck area of the chamber. I would find a Sendero in 7 Mag and shoot it until the barrel is gone, then have it trued and a new barrel installed in 7 STW with a 9 twist.
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Unread 03-23-2011, 11:32 AM
Silver Member
Join Date: Nov 2004
Location: Michigan
Posts: 218
Re: Building a 7mm STW? need help

Have you checked the classifieds lately?

A nice looking STW is offered.

I hope you beat me to it.
QDMA Member
7STW Club
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Unread 03-29-2011, 09:35 PM
Junior Member
Join Date: Dec 2010
Location: Yuma, Az
Posts: 6
Re: Building a 7mm STW? need help

I had mine built from a Browning A Bolt 7mm Rem mag and used a 375 H&H magazine in it and synthetic stock with muzzle brake.
Not a very pricy deal and a great shooter even single handed.
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Unread 03-30-2011, 01:46 PM
Platinum Member
Join Date: Jan 2011
Posts: 2,206
Re: Building a 7mm STW? need help

Savage 116 300wm package rifle=600
27" 9 twist Brux SS barrel= 405
Stockade Tactical/A2=375
1,380 if you do the work yourself about 1,650 if you pay a smith.
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Unread 03-30-2011, 11:01 PM
Bronze Member
Join Date: Jan 2011
Posts: 53
Re: Building a 7mm STW? need help

THE shooting times westerner is on a 8mm rem mag case. lots more powder/recoil/shorter barrel life, whats wrong with a7mm rem. mag or 7mm ultra mag. I shoot a 7mm rem. mag it certainlly will get the job done out to 1000+yds. with the right bullet and load feel free to contact for load data and bullet choice good shooting
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