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I'm pondering a new purchase and was wondering what you guys think about Remington's 5R mil spec as compared to their regular stainless rifling as in an SPS or Mountain rifle? Can you tell any performance in accuracy difference?
Thanks in advance,

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I cannot compare but will tell you that my 5R's in 308 and 223 are both extremely good shooters.


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The two Barliens I have a very accurate also, I don't think they are more accurate than a 4 groove but there not any less accurate either!
Just buy from a reputable maker and you should have no issues!

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The M24 has 5R rifling. I have a S&W AR-15 with 5R and a Savage 6 Creedmoor with 5R. I’m looking forward to doing some testing to see how well they shoot or if they shoot any better than standard rifling

Last edited by Edwin264; 02/13/18.
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My 30-06 has a Pac-Nor 5-R barrel and is very accurate and fast too.


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As Bob Hagel would say"You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong."Good words of wisdom...............
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if you can tell an accuracy difference between 5R and “standard,” that isnt attributable to any other reason, be sure and run a flag up the flagpole and let us know.


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I bought one of the 700s with the heavy barrel in .300 Winchester Magnum and a 700 Mil-Spec .308, also with heavy barrel. Both were bought new and are 5R guns. Still working with various loads, but each rifle shoots very well. I also have a 700 VS in .308 that I bought new at least twenty-five years ago. Of course, it has whatever conventional rifling Remington was using at that time; always been very accurate. I haven't done a formal side-by-side comparison, but I'm pretty sure the 5R .308 is no more accurate than the 700 VS.

Regardless, a comparison of only two rifles wouldn't mean much. Whether a good 5R barrel offers any advantage (other than from a marketing perspective) over a good conventionally rifled bore probably remains to be seen.

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I have 5 R barrels from Rock Creek and I find that they do not foul and are extremely easy to clean



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Exactly...I had Boots Obermeyer rebarrel my 308 40x when I was shooting HP. That was lots of years ago. I put about 12k rounds through it. I would not say the barrel was any more accurate than a conventional design. YMMV.

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I have a 5C Broughton on a Kimber Classic. Great barrel, accurate and doesn’t foul. It does have DBC.

Can’t say it’s better than Brux, Krieger or other premium barrels.

But it’s a real good one.

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I have a 6.5 Mike Rock 5R on my hunting rifle and a .308 4 groove Kreiger on my Palma rifle. Can't discern that one is more accurate or fouls less than the other...


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I have a Rock Creek 26 Nosler and a Remington factory 5-R in 300 Win mag. Easy to clean. Very accurate!!

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As for barrel cleaning, I've found a couple of Extreme Weather Model 70s copper foul far less than most factory barrels. I can't say my 5R Remingtons are any better in this regard, though they are probably the same about the same. Lack of fouling may be due more to general improvements in barrel making rather than a particular rifling style.

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DBC is a good treatment for a foul proned barrel.

I even treat new premium barrels. Can't hurt, may help.

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Originally Posted by jwp475


I have 5 R barrels from Rock Creek and I find that they do not foul and are extremely easy to clean


Just curious you say "they do not foul".........Then why even clean ???????

I have never owned such a barrel, every barrel I have will carbon foul or copper foul eventually.

I have a 5R X-caliber barrel that is a nightmare and a 5C Broughton that seems to be a great barrel.

Boots Obermeyer was the originator of the 5R barrel, he states to be a 5R it must be cut rifled hence Broughton calls their's a 5C because it is button rifled. How does Pac-Nor and Remington call them 5R when Pac-Nor is button rifled and Remington is hammer forged ???

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Straight from Boots' website:


Quote
What does it mean when a barrel is said to be a "5R"?

5R is the form of rifling I developed for use in most target barrels and in many sporting barrels.
These barrels have 5 grooves, and the lands have angular sides. I have observed that bullet jackets
will deform such that they remain closer to the R-form lands than they will to the sharp-edged
lands present in conventional-style rifling. This reduces powder fouling at the corner of the
grooves. The angled form of the lands also helps to reduce jacket failures in quick-twist barrels.


I don't see anything in Boots' answer about the rifling having to be cut.

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I have a Rock Creek also. Accurate as hell.

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I have or have had several 5R barrels. 2 Rocks, 2 Bartleins. One Krieger I'm waiting on, 1 Obermeyer here but unchambered.

I also have a 5 groove Pac Nor.

I also have a 4 groove traditional Brux. And a rimfire Shilen. And a Lilja here chambered but not screwed into a receiver.

I can't tell a difference between any of the accuracy or cleaning between any of the above. Some are better barrels than others, the Brux and one of the old Rocks being very very good. But one is a 6 BR and one a 25-06, both chamberings known for good accuracy.

break break

Is a 5R Remington the real deal? That's a different question. The 5R Remingtons I've seen (never owned one) looked like quality construction, good stock, heavy-ish barrel screwed on right. It's hard to tell if they are more accurate because of the barrel or because Remington decided to put it together with a little extra attention.

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I have a 5R Milspec in 308 and it does pretty well. But I don't think it's because of the rifling form as much as that it's smooth inside, it was hammered straight since it doesn't walk when hot, and it was screwed on reasonably straight. I have a couple of XCR models that do very well for what I believe are the same reasons, and they have conventional 6 groove rifling.

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I have the 5-R Milspec in 300 Win mag. It’s a great rifle, accurate as hell.

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