Carbon fiber wrapped barrels

Northkill

Well-Known Member
LRH Team Member
Joined
Aug 5, 2019
Messages
110
Location
PA
Nice Rifle..It should settle in a bit better with a few more rounds. I do like the Barlein barrels.I have not had a Carbon barrel. What brand /model of Bipod is that?
Thank-you. And yes, it should settle in fine...not a rifle for a lot of range shooting. ;)

As to the bipod, it's Kirby's LR Accuracy bipod. A heavy duty F class type. For that use, shooting off bench or prone it works great. It does not have a wide adjustment range for hunting use and its not very light. Its designed for 50 cal class weapon systems - not something I plan to use for hunting. :)
 

sp6x6

Well-Known Member
Joined
Dec 8, 2009
Messages
4,161
Location
NW MT
At Proof site they have videos of running a string of ten shots i think it is and group.They have one where they shoot group,pull barrel and seriously hit a cinder block,mount back up and holds zero.My rifle is 7#2oz 338NM ,gets used hard,survived this,rifle strapped to roll cage, and held zero.Im ok with it
 

Attachments

  • IMG_2953.JPG
    IMG_2953.JPG
    922.8 KB · Views: 30
Last edited:

Justice1327

Well-Known Member
Joined
Jan 29, 2021
Messages
489
Location
USA
Check out Mikes barrel at hell canyon armory. Proably cant go wrong with any of them. Proof has been having some quality issues lately but nothing they didn’t take care of as far as I know. My cousin has a 6.5x47 Carbon six and it shoots good.
I have had several makes of CF barrels since 2000. In low volume hunting /target rifles in 308’/7-08...you can expect 4-6K rds of factory ammo w/o any real issue. However, my most recent Proof barrel on a custom action wont shoot better than 1.5” and it is a hunting setup. Gunsmith set it back and used a new JGS reamer 2x. Proof said it is to be expected with factory hunting ammo and because I chose an 1:8.4 twist and they suspect it is overstabilizing them. 120-150gr bullets tested w/ no signs of OS on target at 300 yds. Be interesting to see what they say after they look at it this week
 
Last edited:

Buster Hemlock

Well-Known Member
Joined
Feb 26, 2019
Messages
348
Location
NC
I have had several makes of CF barrels since 2000. In low volume hunting /target rifles in 308’/7-08...you can expect 4-6K rds of factory ammo w/o any real issue. However, my most recent Proof barrel on a custom action wont shoot better than 1.5” and it is a hunting setup. Gunsmith set it back and used a new JGS reamer 2x. Proof said it is to be expected with factory hunting ammo and because I chose an 1:8.4 twist and they suspect it is overstabilizing them. 120-150gr bullets tested w/ no signs of OS on target at 300 yds. Be interesting to see what they say after they look at it this week
There is a lot of variables here that could be causing your issues, over stability could in fact be the problem with a 8.4 Twist and the light bullets your using. Also what are the specs on your reamer from JGS, I ask since you state your using factory ammo and the freebore of the reamer may not be appropriate. Or maybe you just ended up with a dud barrel, all manufacturers turn a bad one out from time to time. Let us know so we can all learn and also maybe get you pointed in a better direction
 

KSB209

Well-Known Member
Joined
Sep 17, 2014
Messages
269
Location
Republic of California
There is a lot of variables here that could be causing your issues, over stability could in fact be the problem with a 8.4 Twist and the light bullets your using. Also what are the specs on your reamer from JGS, I ask since you state your using factory ammo and the freebore of the reamer may not be appropriate. Or maybe you just ended up with a dud barrel, all manufacturers turn a bad one out from time to time. Let us know so we can all learn and also maybe get you pointed in a better direction
What do you think about a 308 with a 1:10 twist shooting the 124 grain Hammer Hunters? Don’t have the rifle yet but was going to load these for it when I do. Do you think a 124g bullet will work with a 1:10 twist? Or is it unknown until you try? Info on Hammers website says min 1:13 twist for these 124g bullets
 

Buster Hemlock

Well-Known Member
Joined
Feb 26, 2019
Messages
348
Location
NC
What do you think about a 308 with a 1:10 twist shooting the 124 grain Hammer Hunters? Don’t have the rifle yet but was going to load these for it when I do. Do you think a 124g bullet will work with a 1:10 twist? Or is it unknown until you try? Info on Hammers website says min 1:13 twist for these 124g bullets
Unfortunately it's a until you shoot it and see what it shows on paper/on target. According to stability calculators your even more "over stabilized" than @Justice1327. But I've shot plenty of bullets that were "over and under stabilized" and they shot great. Where you can actually see over stabilization is on paper and also under stabilization. They both show up best on paper but they are very different in appearance. And then some barrels will shoot anything it seems and some will shoot things they "shouldn't". In my opinion/experience lighter bullets perform best around where stability calculators show them but heavier bullets seem to need what is stated and/or more. The monos seem to do better with more spin than recommended. It is a lot of physics but precession and nutation along the yaw cycle of the bullet shows if it's over stabilized/as well as the bullet is settling down/going to sleep.
 
Last edited:

Primary

LRH Assistant
Here are some related products that LRH members are talking about. Clicking on a product will take you to LRH’s partner, Primary, where you can find links to LRH discussions about these products.

 
 
Top