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Contour and barrel length suggestions for 7mm RemMag

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  #1  
Unread 09-29-2008, 02:08 PM
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Contour and barrel length suggestions for 7mm RemMag

Starting a new rifle project and am looking for some suggestions on barrel contour and length.

Looking to build a 7mm Rem Mag in a semi lightweight hunting combination. Not a heavy weight bench gun, yet something a guy can pack all day.

I 'm guessing a #3 - # 6 contoured barrel in 26"-27" length . Just dont want to loose anything (velocity,accuracy) by going to small.

Thanks
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  •   #2  
    Unread 09-29-2008, 02:35 PM
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    Re: Contour and barrel length suggestions for 7mm RemMag

    I wouldn't hesitate to do a 7mm RM on a #4 Lilja and I'd go all of 27". I have one that is fluted and it makes for a nice carry gun just don't put a scope on that will make it top heavy (like the big NSX's).
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      #3  
    Unread 09-29-2008, 02:42 PM
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    Re: Contour and barrel length suggestions for 7mm RemMag

    I have a light 7mm RM with a 24" barrel. I loose a little velocity, but it's 8lbs with scope and bipod! I have no problem getting a bit over 3000fps with the 160gr Accubond and 1/4 - 1/3 MOA groups if I keep the barrel cool. I shot a .19x" a while back from the prone position at 200yds. I wouldn't mind the barrel being a bit longer, but this is my pack anywhere rifle and I like having it handy.

    I can get 3100fps with the 24" barrel, but it opens the groups to 3/4-1" at 100yds.

    AJ
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    Last edited by AJ Peacock; 09-29-2008 at 02:45 PM.
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      #4  
    Unread 09-29-2008, 03:31 PM
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    Re: Contour and barrel length suggestions for 7mm RemMag

    9lbs is about as heavy a rifle as I like to tote around. That's just how much my rifle weighs. You can see here: http://www.longrangehunting.com/foru...y-280-a-32771/
    You will see that it's a #4 douglas taper barrel 24". You wouldn't gain much weight by going to 26" or 27" especially if you fluted the barrel.
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      #5  
    Unread 09-29-2008, 03:59 PM
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    Re: Contour and barrel length suggestions for 7mm RemMag

    i'm planning a lightweight project and just talked to an MFIC at Kreiger barrels the other day. i'm building a 338 and their minimum size for a chrome molly barrel is 3 sizes smaller than a stainless barrel. i'm going with the CM because it's stronger than SS and a better value.
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      #6  
    Unread 09-29-2008, 08:22 PM
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    Re: Contour and barrel length suggestions for 7mm RemMag

    My current 7mag wears a #4 Shilen, 24" long. If I could do it over, I'd go with a #3.

    I have in my safe a beautiful piece of steel from Krieger, a SS 7mm barrel ready to cut, crown, chamber, and install on my next project, 4 groove if I recall.

    I think and OD at the muzzle of .630 is about perfect.

    My next 7mag will have a 26" bbl. Don't get caught up on too much velocity loss. You mentioned it being a carry rifle, therefore, I'd not go any longer than 27" and 25-26" is about perfect.

    Good luck.
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      #7  
    Unread 09-29-2008, 10:25 PM
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    Re: Contour and barrel length suggestions for 7mm RemMag

    I have just rebarelled my 30/06 to 7mm mag. I ended up going with a 26" No 5 contour. All up rifle weight is around 9 lb. It's not too bad to carry and the recoil is fine (no muzzle brake). A No 4 contour would be ok and a bit lighter.
    I ordered a No 4 contour but the barrel maker I used has a different numbering system. Their No 4 is equvalent to a Lilja No 5.

    Stu.
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