carbon fibre on a barrel
- Thread starter ithacaturkeykilr
- Start date
Canadian_Zuk
CGN Ultra frequent flyer
- Location
- Pickering, Ontario
I doubt it
I think it will cost you a lot less to buy a good blank and get it chambered.
Proofreseach claims the figured out a way to make it heat dissipation but resin and fiber is usualy an insulation and heat will eventualy burn the resin.
I would be surprised that wrapping fiber on a barrel backyard style would be any better than sliding a heavy wall steel pipe on the barrel and fill the gap with epoxy.
Proofreseach claims the figured out a way to make it heat dissipation but resin and fiber is usualy an insulation and heat will eventualy burn the resin.
I would be surprised that wrapping fiber on a barrel backyard style would be any better than sliding a heavy wall steel pipe on the barrel and fill the gap with epoxy.
Barrels done with carbon tube exteriors have the inner steel core tensioned in the carbon to pull the steel portion tight. Just wrapping carbon fiber and epoxy around a barrel with no other consideration won't do much of anything but make a mess and cost you money.
Carbon fiber isn't some miracle drug. It's a material like any other. It has strong points and weak points. And if it's used well it's amazing stuff. If it's not used well it does very little or nothing. It's also difficult to even make the carbon layups look pretty.
Carbon fiber isn't some miracle drug. It's a material like any other. It has strong points and weak points. And if it's used well it's amazing stuff. If it's not used well it does very little or nothing. It's also difficult to even make the carbon layups look pretty.
burnt_servo
CGN Ultra frequent flyer
- Location
- right in the middle of b.c.
christensen arms does or at least does the barrel tensioning thing with their carbon fiber ....... avoid this company like the plague , I have heard nothing but bad things about them .
http://proofresearch.com/ bought their technology from another company who had figured it out properly and laid the process out in detail on their website .... so much so that someone with half a brain could do it themselves if they where motivated enough .
the carbon they use and the way they wrap it allows for very rapid heat transfer and dissipation , so much so that rounds that would cook the throats of regular barrels , don't with their carbon wrapped barrels . the original company used to have documented proof about this .
I also believe that they are not tensioning their barrels , but instead just using a very slim , sporter style blank and building up its thickness with carbon fiber to make it rigid .
http://proofresearch.com/ bought their technology from another company who had figured it out properly and laid the process out in detail on their website .... so much so that someone with half a brain could do it themselves if they where motivated enough .
the carbon they use and the way they wrap it allows for very rapid heat transfer and dissipation , so much so that rounds that would cook the throats of regular barrels , don't with their carbon wrapped barrels . the original company used to have documented proof about this .
I also believe that they are not tensioning their barrels , but instead just using a very slim , sporter style blank and building up its thickness with carbon fiber to make it rigid .
- Location
- Northern ON
Kind of a cool idea. Isn't there a shotgun with the same idea, steel core with fibre-glass wrapping? It'd be neat to try one with carbon fibre.
- Location
- calgary alberta
The reason the XCRs are so poor in the accuracy department is mostly in the way they engineered their barrel retention. Even wasting the time and money installing a precision machined match grade barrel makes only marginal gains in accuracy with this rifle.
You would be much further ahead to work with a different platform that at least has a chance for accuracy.
Most epoxy's will fail at around 200 F, so the carbon fiber is not the problem, the resin matrix is. Yes you can buy epoxies that are good up to 350ish F , but the real problem is that the metal barrel and carbon fiber have a different thermal expansion rate. Meaning the barrel ( steel barrel)will become unbonded for the carbon fiber wrap, as the barrel heats up. If you were to make a barrel (steel inner) of a very thin....?? barrel liner and wrap it in carbon fiber, you might have a chance...but the resin will still fail. If you never got the barrel hot....one shot at a time, no full mag dumps, you might get away with it for a while.
Alot of carbon wrapped barrels on the market today have a metal end cap, that puts a preload on the outer wrap, that way ,when the barrel gets hot and unbonds from the steel barrel it's not notable.
I have been down this road already. Have 20+ years in the fiberglass manufacturing business, so not something new to me. there has always been alot of " smoke and mirrors" over the carbon fiber barrel thing.
If they work so well....then the U.S. army would equip every soldier with one. And the people that invented resins ,fiberglass carbons...etc ( the Chinese ) would have an army of carbon fiber rifles.
And yes I will probably get jump all over for writing this again. But didn't hear back from anyone that bought , one of those $1000.00 plus carbon wrapped barrels awhile back, or maybe they never , received there orders .
Cheers
Brian
Alot of carbon wrapped barrels on the market today have a metal end cap, that puts a preload on the outer wrap, that way ,when the barrel gets hot and unbonds from the steel barrel it's not notable.
I have been down this road already. Have 20+ years in the fiberglass manufacturing business, so not something new to me. there has always been alot of " smoke and mirrors" over the carbon fiber barrel thing.
If they work so well....then the U.S. army would equip every soldier with one. And the people that invented resins ,fiberglass carbons...etc ( the Chinese ) would have an army of carbon fiber rifles.
And yes I will probably get jump all over for writing this again. But didn't hear back from anyone that bought , one of those $1000.00 plus carbon wrapped barrels awhile back, or maybe they never , received there orders .
Cheers
Brian
- Location
- calgary alberta
I personally have several rifles with Proof Research barrels on them. The very first 1 I built I purposefully ran it hot enough that 1 would get a significant burn from touching, just to see IF their claims had merit. Apparently their resin which is proprietary is something new and different as it does not let go and Proof barrels are NOT tensioned with a muzzle cap.
Technology does change, maybe they have come up with something new?
All I can say is the accuracy is stellar, and the barrels are much tougher than imagined.
We had 1 client have a bore site spud left in his barrel by the shop who mounted his scope, they decided that test firing a bore site job was required. When I heard about this I was truly expecting to see a barrel that was split at the muzzle with a good part of it missing. I have seen several conventional barrels that have suffered similar mistakes. The Proof barrel IS buggered to be sure, but looking at it 1 really has to look. The damage to the eye in this case was so minimal it is hard to believe. The pin gage tells a different story, but visually it is hard to detect. The barrel has a .004 swell where the bullet impacted the bore site spud and their is minor cracking of the CFW, the brake is no possible to turn.
They look good. A resin that is capable of 1500 F..... you wont find around here.
Went to there web site, and seen how they turn down the middle of the barrel down , leaving the chamber, and muzzle end enlarged . And leaving most of the barrel ( steel part/core) turned down to a small O.D.
But .way beyond the scope of most people ... with out an autoclave,resin impeg. carbon fiber and a good vacuum pump/chamber. Or maybe there uses an RTM method.
Went to there web site, and seen how they turn down the middle of the barrel down , leaving the chamber, and muzzle end enlarged . And leaving most of the barrel ( steel part/core) turned down to a small O.D.
But .way beyond the scope of most people ... with out an autoclave,resin impeg. carbon fiber and a good vacuum pump/chamber. Or maybe there uses an RTM method.
