Gunsmithing Minimum barrel profile for accurate .338RUM ?

wadcutter

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Dec 23, 2008
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I am looking to get built a .338 RUM with a quality custom 26" to 27" length barrel of minimum weight.
What would you advise with regard to profile and fluting.
I would prefer to not have fluting but if it is important then I would go with it.
My aim is minimum weight while maintaining 3 shot, 3/4 MOA or better accuracy with either the 300 grain SMK or 250 grain Hornady BTHP Match projectile.
 

USMCj

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May 1, 2008
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Re: Minimum barrel profile for accurate .338RUM ?

Fluted sendero, or M24. Maybe even fluted medium palma?
 

bohem

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Jan 6, 2009
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Re: Minimum barrel profile for accurate .338RUM ?

Get a premium barrel and skip the flutes unless you like how they look. A light varmint contour will do the job, just make sure you get a good barrel. You will soon forget the extra $150 bucks you spent on it, you'll never forget how you SHOULD have spent the extra $150 bucks on it.
 

JJones75

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May 18, 2008
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Re: Minimum barrel profile for accurate .338RUM ?

I've got a Mark-V , 340 Weatherby wearing a #3 Kreiger that will shoot 3/4 moa 3 shot group as fast as you can get it back under control and on target (maybe 10-15 sec) and it will shot consistant 1/2 moa groups out to 300yds with slow rate of fire

thats shooting a 250gr Partition to near 2900fps from a 26" barrel with no brake , so recoil is certainly a factor their

i think the barrel quality makes a bigger differance than the conture especaily for only 3 shot groups

I cut weight on this gun by using Tally unit mounts ring/base and a McMillan Edge fill stock
 

jrpilot

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Jan 4, 2009
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Re: Minimum barrel profile for accurate .338RUM ?

I have an Edge being build on a Rem Varmint contour. Most that I talked to about what contour to use said the Rem Varmint was a good choice between be heavy enough to control recoil, but still being able to carry it around.
 

Bluejazz

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Jun 8, 2009
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Re: Minimum barrel profile for accurate .338RUM ?

I would go with a Rem Sendero or med palma contour,but make the muzzle diameter .750. Will save you at least 1/2# and still be extremely accurate.
 

sinarms

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Jun 22, 2009
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Re: Minimum barrel profile for accurate .338RUM ?

I've done barrels in a #1 contour in 6.5mm that would shoot sub 1/2moa, I would say a good magnum contour and you should be fine.