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Budget build, advice please

 
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  #1  
Old 05-16-2011, 12:51 PM
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Join Date: May 2011
Posts: 47
Budget build, advice please

Hello all,

Long time lurker, first time poster. I have read many threads on here with great interest and after reading a post that detailed how to change a savage barrel, I have decided to try my hand at building a long range rig on a budget. Being able to rebarrel myself means I donít have to send the gun away to a smith and pay lots of money to put a new one on which is why Iím not opposed to something like a 7stw or 7rum. I would like to build this rifle around the 180gr bergers on a 28Ē or 30Ē tube to get 3200 fps or so with the 180gr bergers. Will a 7 stw do that? Iíve shot my friends 338 lm out to a mile on steel and would like to, after much practice of course, shoot deer, elk and moose out to 1000m. Elk least frequently, deer most often and moose now and then. I am not really looking to argue about whether the 7mm at stw or rum velocities can kill those critters. I believe it can if I pick my shots (Iíve killed moose with my 257 weatherby as well) and put the bullet where it counts. I realize full well that a 338 edge et. al, will do so with more authority but since elk and moose are only sometimes on the menu and I canít afford another long range gun, Iíd rather not shoot deer at 1k with a 300gr smk.

My next question is which action to use for this build. I live in Canada and finding the old 110 rum actions is near impossible so I was thinking I would buy a new gun, sell the barrel and stock and use the action for the build. Which savage model will lend itself best to doing this build? Will any of the magazine options on currently available savage guns allow 180gr to be seated properly or is this strictly a single shot option?

Third I would like to hear some stock recommendations as well if possible.
So to summarize what rfle would you use if you were buying a rifle with the intention of selling the barrel and stock (unless something like an accustock is good enough?). Will this same action also work for a 338 edge barrel if I ever do a 338 edge on the same gun, just swap the barrel from the 7mm? Will any of the factory available magazines fit a stw or rum with 180gr bergers or is this single shot only? What stock do you recommend? Optics will be NXS 5.5-22 my friend said I can use as a loaner until I have the cash for my own. Do I need a rail? 10moa enough?

Thanks for any advice!
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  #2  
Old 05-16-2011, 08:24 PM
Junior Member
 
Join Date: Mar 2011
Posts: 19
Re: Budget build, advice please

I don't feel so alone anymore.

I'm pretty much going through the same process only favouring .30 cal options rather then 7mm. The more I learn the less it seems likely there is a perfect solution. 110 RUM actions are like hen's teeth in Australia too, and it looks like there will be OAL issues with the Savage magazine when looking at WBY and RUM options.

I'll lurk with interest.
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  #3  
Old 05-16-2011, 08:48 PM
Junior Member
 
Join Date: Aug 2010
Posts: 5
Re: Budget build, advice please

Dont discount a 7mm rem mag, have a look at a ballistics chart, a 180gr berger has a pretty impressive flight path loaded to rem. mag velocities, i would imagine an stw would be that much better, Im building a 7mm rem mag as we speak, savage 111 donor action, rifle basix trigger set to about 8oz, farrell 20 moa base, shilen 26" bull contour ss select barrel, choate tactical stock, my goal is to have a rifle capable of decent accuracy at 1 mile without spending a fortune.
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  #4  
Old 05-16-2011, 11:46 PM
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Join Date: Oct 2007
Location: Patagonia Mountains, Arizona
Posts: 752
Re: Budget build, advice please

Compare the case length and case capacity of these four cartridges:
--------------------------case---------case
--------------------------length------capacity
7mm Rem Mag --2.50"-------81 grain
7mm Dakota------2.49"-------89 grain
7mm STW----------2.85"------97 grain
7mm RUM----------2.85"----112 grain

Certainly the full length magnums are more powerful and give higher velocities. Something to watch for though when planning a rifle to shoot heavy VLD bullets is the cartridge overall length.

The 7mm STW and 7mm RUM cartridge with a 180 Berger is too long to comfortably fit in a 3.6" magazine for appropriate seating depth. In a Rem 700 long action a little machining will allow a longer aftermarket magazine, like from Wyatts. I don't know the magazine length of the various Savage actions, but it's something that you should consider before starting your project. The 7mm Rem Mag is a fine cartrige in a 3.6" magazine with 180 Bergers. . Yes, the larger cartridges give 200-300 yards more range for energy but not much more for accuracy.

The 7mm Dakota gives more energy than a Rem Mag for the same length case but a little more difficulty getting brass and barrels.

Personally i think the 7mm RUM has more case capacity than I want in that caliber. It's getting dfficult to get efficient case fills and barrel life is falling off rapidly from throat erosion. I think the 7mm STW is about the largest practical 7mm cartridge for hunting though I'd like it in a shorter fatter cartridge. A 7mm RUM shortend to 2.5" case length would be just about right for a 3.6" magazine and a 26" to 28" barrel.
Anyone make reamers and dies for that?
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  #5  
Old 05-16-2011, 11:55 PM
Platinum Member
 
Join Date: Mar 2002
Location: Wyoming
Posts: 2,615
Re: Budget build, advice please

Talk to SinArms on here about the 7mm Sin he is developing. That will be the one to have in 7mm. It fits on a 30-06 length action with 6-8 grains more powder than the STW. Extreme short fat case for seating the 180's with a bunch of powder behind them. My 338 Sin is done and 264 Sin is next. Should hit close to 3500 fps with a .612 bc bullet. That ain't bad ballistics.
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  #6  
Old 05-17-2011, 07:26 AM
Silver Member
 
Join Date: Jul 2009
Location: Sydney,Australia
Posts: 321
Re: Budget build, advice please

I like the 7wsm on a long action,you can have it long throated,it won't be quite as fast as the stw but neither will the barrel life!!
Oh yeah and don't rule out the plain old 284win a lot of bench guys are doing good things with this round and getting around the 3000fps mark with the 180's and you wont need a magnum action for this one either.
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  #7  
Old 05-17-2011, 08:04 AM
Platinum Member
 
Join Date: Jan 2011
Posts: 2,099
Re: Budget build, advice please

As 300R stated I think your best bet is to put a long throated 7mm WSM on any standard shank savage long action, you will not need a controlled round feed bolt head or special magazine, use a quality 28" sendero or larger contour stainless 1:9 twist and it'll take the lead over a 7mm rem, fit in the magazine, have longer barrel life, and do all you need it for.
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