Bartline Barrels

[Ironworker]

What do you all think of Bartline barrels . Specifically a 29" Rem Varmint 6mm 8"5R Twist Chambered in 6mm Creedmore . Purpose long range steel and prairie Dogs . Current rifle is Rem 700 Sendearo in 6/284. That bbl is done,I'm through with that cartridge. How long do I want the bbl to be ?

 

[FatBoy]

Frank makes top quality barrels. I, personally, am not a fan of 5R on calibers under 6.5mm but that's not to say it won't be a tack driver. I just prefer conventional rifling.

 

[germanlongbow]

I rebarrreled by last 243 AI from a 4 groove Krieger to a 5R Barlein. No issues with it. Crazy accurate with ability to push up powder load and velocity without pressure issues. I just rebarreled my 6.5 saum from a 4 groove to 5R Krieger, haven't shot the new 5R yet but gave up on the 4 groove after 400 rounds and no consistency in load.

 

[paperpuncher]

Hard to go wrong with that choice

 

[Pappy42]

My Bartlien 5R barrel in 6 Dasher shoots extremely well.

 

[butchlambert]

Question for my benefit. What is a 5R barrel?

 

[Ironworker]

Question for my benefit. What is a 5R barrel?

Different shape rifling grooves . Rock BBLs described the lands as if they were a pyramid with top cut off at a slight angle .

 

[butchlambert]

Anybody know how a 5R barrel differs from a conventional rifling.

 

[Alex Wheeler]

http://internationalbenchrest.com/results/long_range/2016/Cool Acres/Nat/Equipment List.pdf

Equipment list from the 1k nats. Wish it was in order of placement, but its gives you an idea.

 

[tigguy]

Anybody know how a 5R barrel differs from a conventional rifling.

LoL.

 

[butchlambert]

Alex, I know Tracy and Frank make good barrels, but I think people are buying the 5R on hype only.
tigguy, when you stop laffing out loud, explain 5R rifling. Bet you have not a clue.

 

[spclark]

Anybody know how a 5R barrel differs from a conventional rifling.

From what I've learned it's the shape of the lands that's different.

5C & 5R are similar in that the angle of the lands' sides isn't perpendicular to the top & bottom of lands / grooves. The idea is to reduce stress on bullet jackets by making the shape they're made to conform to once fired less extreme.

Polygonal rifling takes it even farther by doing without well-defined lands & grooves, instead making the bore's shape more like that of a "round-shouldered stop sign."

 

[butchlambert]

From what I've learned it's the shape of the lands that's different.

5C & 5R are similar in that the angle of the lands' sides isn't perpendicular to the top & bottom of lands / grooves. The idea is to reduce stress on bullet jackets by making the shape they're made to conform to once fired less extreme.

Polygonal rifling takes it even farther by doing without well-defined lands & grooves, instead making the bore's shape more like that of a "round-shouldered stop sign."

You are correct. The land consists of 5 radii. Though most are 5 groove it does not have to be 5 groove to be a 5R. I still think a good barrel wins regardless of the amount of lands and shape.

 

[Liven The Dream]

You can't go wrong with there Barrels.......
I always get heat on this comment ?
5R is a Registered Trade Mark of Boots Obermeyer Barrels. All other 5R'S are just a little different.
If you want a True 5R you must order it from Boots or Krieger is licensed to make 5R barrels.
I have some and they shoot well, but still I have Bartliens that Hammer.
Shop Well

Boots 5R 6.5 Barrels are in the Winners Circle Time and Time again...........

 

[nicholst55]

You can't go wrong with there Barrels.......
I always get heat on this comment ?
5R is a Registered Trade Mark of Boots Obermeyer Barrels. All other 5R'S are just a little different.
If you want a True 5R you must order it from Boots or Krieger is licensed to make 5R barrels.
I have some and they shoot well, but still I have Bartliens that Hammer.
Shop Well

Boots 5R 6.5 Barrels are in the Winners Circle Time and Time again...........

Mike Rock (Rock Creek) is also licensed, and he learned from Boots.

 

[butchlambert]

Mike Rock (Rock Creek) is also licensed, and he learned from Boots.

Thought Mike's health got him out of the business. I know his 2 good guys left a few years ago. They did make a fine barrel.

 

[FFEMT]

It never fails to amaze me...... You are taught from a very early age that if you don't know why or how something works, you ask questions. It is in reference to enhancing you're mind, you're level of education concerning a specific subject, gaining a better understanding of the mechanics of a given subject, etc. etc.. Then some "JACKWAGON" has to come along and make fun (LOL) of the fact that apparently you have never fad the opportunity to gain that piece of knowledge. It's about as disrespectful as a person can be. For some, I apologize if this hit a little close to home. For those of you who understand, thank you for allowing me to vent. Thank you one and all, Bob.

 

[paperpuncher]

Anybody know how a 5R barrel differs from a conventional rifling.

From Boots Obermeyers web page
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.

 

[Alex Wheeler]

The guys at Rock Creek make an excellent barrel. They are my top choice. I use more of them then any other. However I like being able to get them in reasonable times so I dont brag on them as much as they deserve. Their "5r" is very different from all the others.

 

[Liven The Dream]

Mike Rock (Rock Creek) is also licensed, and he learned from Boots.

Yes I know the whole Story , Thanks for the post