new barrel question

bjohnson_7

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Jul 14, 2009
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I have a M700 in .300 RUM. It has a KP barrel on it but I'm going to a larger barrel for long range work. I'm thinking of getting a Krieger with 5R rifling in the MTU contour. Are there any advantages to the 5R rifling? Is the contour heavy enough for long range work?
 

coyotezapper

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Sep 26, 2009
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With 5R barrel you will get a little more velocity and it will clean easier. I use Mike Rock barrels and they are awesome.
 

Chas1

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Feb 15, 2009
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3,557
bjohnson_7, This is right from the Krieger website:



Q: What are the advantages of 5-R style rifling?

A: This is a tough one. There have been many reports and opinions on an "improvement" by using 5-R style rifling vs. conventional rifling. Many of these reports are of increased bullet speed, better gas seal on the bullet, less copper fouling/easier cleaning, etc. These are issues that are not prevelant with our traditional rifling style, so we really expect no improvement with our 5-R barrels. Our 5-R barrels are made with the same bore and groove dimensional tolerances and uniformity as our conventional record setting rifled barrels, so there certainly should not be a disadvantage. We offer the true Obermeyer style 5-R rifling in select calibers for shooters that feel there is an advantage to this style of rifling, you can be the judge.
 

bjohnson_7

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Jul 14, 2009
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Yeah I read it on the website but I wanted to some opinions from actual users of the barrel not just the company.
 

TOM H

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Dec 24, 2001
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1,214
Yeah I read it on the website but I wanted to some opinions from actual users of the barrel not just the company.
My gunsmith ordered a 5r barrel from kreiger for a 300WSM last year just after they announced making 5r barrels and it came in end of Apr along with appr 10 more. I don't expect rifle to be finsihed June/July as I told no rush.

I think most shooter like to have afew months shooting before offering an opinion took me that long when I got a Broughton 5c was alitttle easier with the Bartlein 5r.

coyotezapper is right alittle faster easier to clean.
 

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