7mmRem Mag vs 7mmSTW

Discussion in 'Long Range Hunting & Shooting' started by 270shooter, Jan 22, 2012.

  1. 270shooter

    270shooter Active Member

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    Im wanting to rebarrel my savage 110 it currently in 7mmRem mag with a very light contour barrel. Im wanting to use varmint contour barrel which cartridge would you all choose the standard 7Rem Mag or the 7mmSTW? Give me your reasons for your choice and the barrel life for each . Thanks in advance.
     
  2. laserflat

    laserflat Well-Known Member

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    Unless you reload the westerner isnt going to be very practical. Also, you are going to want atleast a 26" barrel for the STW, yet you can get by with 24 for the RM. If it were me Id have a 30" bbl on either. With that said, if I was stepping above the 7RM I wouldnt just go to a STW, I would go all the way up to a RUM or even better an AM. Its up to you though, no doubt the STW is an outstanding LR cartridge and can take pretty much everything in NA from a long way off. IIRC, the 7RM has ~83 gr H2O capacity while the STW has 99 Im pretty sure. So you are looking at right around ~200 fps difference between the 2. The longer the barrel, and the heavier the bullet +slower the powder, the more the STW will leave the RM in the dust.

    What size game/at what distance are you looking to do?

    Shoot Long time long ranger a pm, Im pretty sure its him who has worked extensively with the STW`s.
     

  3. WildRose

    WildRose Well-Known Member

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    I've owned 7 rem mag's since 1974 and STW's since the early nineties.

    Both are tremendous calibers and will do anything you want out to 800yds.

    However with the STW you can keep going for another 200-300yds on just about any game in N. America and push any bullet 150-200fps faster with it as well.

    As for barrel life if you load either to the max and shoot the hell out of it you probably won't get much over 500-700 rounds out of them before the groups start to open up.

    However for 99% of hunters they won't open enough to be outside of the margin of shooter error for you to even notice until you get beyond 1,000 rnds.

    Don't shoot max weight bullets at chargest that exceed recommended maximums and don't get it hot and you can shoot them a long time.

    As for the 7mm Rum, I don't see the sense in it. For the additional cost in recoil, muzzle blast, and powder to me it's just not worth it.

    For big game rifles I currently own 7mm STW, 300WM, and 300 Rum. I have all the gun I'll ever need for anything with them.

    If I could justify the need for owning anything bigger I'd go all the way and build a .375 Cheytac and skip everything it and what I currently own.

    Back to your question... .

    If you build an STW, so as to get the most out of it get a 26 or 28" Barrel.

    If you build the 7mag, go with at least the 24" but I'd say go with the 26".

    With the same length barrels for both calibers the STW will rarely give you more than 100-125fps more, but you have so much more powder capacity it really shines with a couple of extra inches of room to burn that powder and build velocity before you let it fly.

    As for carrying in the field, 2" more barrel really doesn't make much difference.
     
  4. Derek M.

    Derek M. Well-Known Member

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    I'm not an expert. I have 7mags. I've never owned an STW. For what its worth, I understand that John Burns used to shoot the 7STW but found it to be a bit finicky so he changed to the 7RemMag. Apparently, this occurred sometime between his first Beyond Belief video and subsequent videos.
     
  5. bowstryder

    bowstryder Well-Known Member

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    270 I am currently having a 110 7 rem mag rebarreled for an stw as well. Here is what I ran into and what I am doing (for what it's worth). First and foremost if you have an internal box it's TOO short for the stw. My smith is going to cut a bit from the action and install a remmy box. He's done this before with great success. It will wear a broughton 26" #5 in 1:9 twist for heavier bullets. I am going budget with the stock with a b&c duramaxx with varmint channel. I am building this for my dad as he has always wanted one and we are heading out west for elk this coming fall..... The funny thing is that he has a gorgeous rem 700 in 7mag for a back up......... I win either way because I am going to use it for an antelope hunt in wyoming in october. Bottom line, it's a gift for my father as well as the elk hunt. And yes, we roll our own. hth
     
  6. 270shooter

    270shooter Active Member

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    Thanks for all the input. My next question is can you get factory brass for the stw? And also per the question I hunt mostly whitetails in central and northern kansas so lots of room.
     
  7. WildRose

    WildRose Well-Known Member

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    Yes, you can get both factory brass and high quality factory loaded ammo.

    The STW is making a big comeback and with Remington and others chambering for it again that supply is going to steadily increase.

    KS with all that wide open prairie ground is a great state for long range shooting so the 7mm STW and 300 Rum were both pretty much built for it.
     
  8. Long Time Long Ranger

    Long Time Long Ranger Well-Known Member

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    Wildrose is right on with his post. I have five STW's and two Remingtons. The remingtons pretty much collect dust. The stw's are extremely accurate, are a pleasure to load for, are not finicky and have won many 1000 yard matches. They are much faster. The STW is the best 7mm out there because it is the largest case you can use in 7mm before you get into a severe barrel burner and deminishing returns as far as velocity. With each caliber you hit a certain size case and beyond that you just don't gain much velocity wise in comparison to the amount of powder you feed it. Also they begin to eat barrels pretty bad. The STW is not bad on barrels and is only 100 fps behind the RUM. I have two RUM's. The STW is where 7mm shoots best so I have five of those.
     
  9. Sako7STW

    Sako7STW Well-Known Member

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    After owning the STW, there is no need to even think about a Rem again. No need to look at a 7RUM as there is little advantage there. If I move to something bigger it will be a BIG .300 or .338 like the Lazz or Allen Mags. I will never get rid of my STW though. Most versatile round I have ever owned.
     
  10. bowstryder

    bowstryder Well-Known Member

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    Sako, that's good to hear. I don't have any experience with it but if the barrel shoots, I am really looking forward to using it!
     
  11. glock

    glock Member

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    I have both 7mm mag and 7mm STW.
    My 7mm Mag is a Ruger #1 with the laminate stock

    I have 2- 7mm STW rifles.
    7mm STW Ruger #1 laminate just like the 7mm Mag
    I also have a Winchester Model 70 Classic Laredo LRH (Long Range Hunter) in the 7 MM STW

    I like them both. They will do the same at 200 yards. If you want to reach out and hit them at greater distances choose the 7MM STW. I own many guns and I love the STW.

    Ammo for the STW is harder to find. I bought up 400 rounds of Remington brass
    and I load my own so for me no big deal.

    Good luck with your choice.
     
  12. 270shooter

    270shooter Active Member

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    who makes the best barrel for a savage in either caliber and what length would you all recomend
     
  13. Freebore

    Freebore Well-Known Member

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    Sharp Shooter Supply - The Savage Specialists

    PAC-NOR Barreling, Inc. - Prefit Barrels

    Both are good barrel folks.

    Fred at SS Supply is a Savage Specialist. The is a thread on LRH about Douglas barrels. Fred also sell Brux now too.

    Have Fred cut you a varmint contour, have it fluted finished at 27" and then add the brake, he does it all.

    Most manufactures make Savage Prefits now.

    I have a 7Rem Mag, 7STW and a 7RUM. I really like my STW.
     
    Last edited: Jan 25, 2012
  14. WildRose

    WildRose Well-Known Member

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    Emphasis mine.

    Not hard at all these days since Remington has gone whole hog chambering for it again.

    AmmoEngine: 7mm STW Magnum, Instock For Sale Premium & Discount Ammunition, Ammo Deals

    7mm STW (Shooting Times Westerner) rifle ammo ammunition - AmmoSeek.com

    Heck even my one horse Town's one little outfitter/taxidermy shop stocks it.