new barrel 5r rifling ?

rebs · July 10, 2018, 01:59 PM

Looking and thinking about a new barrel for my AR 15. Shooting 100 to 300 yd paper targets.
Is 5r the way to go or are the top name barrels just as good without the 5r ?
This would replace the barrel on my Colt match target competition AR.
What barrels are the shooters at Camp Perry using ?

Ruga Booga · July 10, 2018, 03:43 PM

I have a 444 MGM barrel for my TC Encore with 5R rifling that is sub moa. It has a mirror shine and very easy to clean. Plenty of people shooting tight groups without 5R though.

marine6680 · July 10, 2018, 04:31 PM

The question isn't just 5r or no...

A poorly made 5r barrel will shoot worse than a well made traditional barrel.

Now, in theory, all things being equal (they rarely are) between traditional 6 groove and 5r, the 5r will shoot better due to less stress induced into the bullet.

So, pick a barrel from a manufacturer who has a reputation for accurate barrels. And don't worry about if it is or isn't 5r.

If you can get a 5r from a good company then awesome.

rebs · July 11, 2018, 05:39 AM

can you guys recommend a good barrel maker ?
What about Kregeir, shillen, white oaks etc which is recommended by the camp perry and competition shooters ? This is for shooting matches at 300 yds with NRA paper targets

stagpanther · July 11, 2018, 06:18 AM

I wouldn't get too hung up on the number of grooves as an absolute indicator of inherent accuracy--I have a 3rh barrel from ARP which is very accurate.

July 10, 2018, 01:59 PM	#1
rebs Senior Member Join Date: January 10, 2012 Posts: 3,881	new barrel 5r rifling ? Looking and thinking about a new barrel for my AR 15. Shooting 100 to 300 yd paper targets. Is 5r the way to go or are the top name barrels just as good without the 5r ? This would replace the barrel on my Colt match target competition AR. What barrels are the shooters at Camp Perry using ? Last edited by rebs; July 10, 2018 at 02:04 PM.

July 11, 2018, 05:39 AM	#4
rebs Senior Member Join Date: January 10, 2012 Posts: 3,881	can you guys recommend a good barrel maker ? What about Kregeir, shillen, white oaks etc which is recommended by the camp perry and competition shooters ? This is for shooting matches at 300 yds with NRA paper targets Last edited by rebs; July 11, 2018 at 07:48 AM.

July 11, 2018, 06:18 AM	#5
stagpanther Senior Member Join Date: March 2, 2014 Posts: 11,787	I wouldn't get too hung up on the number of grooves as an absolute indicator of inherent accuracy--I have a 3rh barrel from ARP which is very accurate. __________________ "Everyone speaks gun."--Robert O'Neill *I am NOT an expert--I do not have any formal experience or certification in firearms use or testing; use any information I post at your own risk!*

July 10, 2018, 03:43 PM	#2
Ruga Booga Senior Member Join Date: September 2, 2017 Location: SE Kansas Posts: 116	I have a 444 MGM barrel for my TC Encore with 5R rifling that is sub moa. It has a mirror shine and very easy to clean. Plenty of people shooting tight groups without 5R though.

July 10, 2018, 04:31 PM	#3
marine6680 Senior Member Join Date: July 24, 2012 Location: Parker, CO Posts: 4,594	The question isn't just 5r or no... A poorly made 5r barrel will shoot worse than a well made traditional barrel. Now, in theory, all things being equal (they rarely are) between traditional 6 groove and 5r, the 5r will shoot better due to less stress induced into the bullet. So, pick a barrel from a manufacturer who has a reputation for accurate barrels. And don't worry about if it is or isn't 5r. If you can get a 5r from a good company then awesome.