Ceramic bore liner

C

crowfluffer

Guest
Has anyone tried the new ceramic bore liner from Otis? I have a new Savage F class 6.5-284 and due to the reputation this cartridge has for limited barrel life, I am curious about the performance of the ceramic liner.
 
Crowfluffer,
It is not a ceramic liner. The barrel could not stand the heat of a true ceramic coating. Another gimmick.
Butch
 
Liners not up to the task...

crowfluffer said:
Has anyone tried the new ceramic bore liner from Otis? I have a new Savage F class 6.5-284 and due to the reputation this cartridge has for limited barrel life, I am curious about the performance of the ceramic liner.
Click to expand...

It's the old attage......... If ya want'a play, your gonna have to pay...

No bore liners have EVER aided accuracy.. Maybe in barrel life (chrome lined) but for bullet spray'n accuracy only............

As has been said NUMERUS times on this board... Barrels like other items in shooting are expendable. Yes your 6.5-284 is one of the worst...
Things to consider...
If you got a solid performing barrel and would like some more trigger time with it. Have a well chosen Benchrest capable gunsmith cut the old tennon off and "push" a new chamber forward equivelant to the old tennon length. This will get ya far enough ahead of the worst heat checking and to clean lands for another 800-1000 rounds.

Or.... Think about a different chambering.... A 6.5x55 from Lapua brass, or versions off the .308 case.... AKA the .260 Rem.......... Darn effecient and a bit easier on barrel throats.

All in all there is nothing to prevent a barrel from shooting out eventually and yes it's tough to "lay down" a real shooter..!:(

Save your funds ... Good news, the custom barrels out there are OUTSTANDING.....! Quite probably better/more consistent than they EVER have been in the past.!

cale
 
Hmmm

35 percent increase in accuracy. I could go for that. It does sound like "snake oil".

Heck, I have a lot of barrels laying around. Many are still in pretty good shape, I just fell out of love with them.

Maybe I should aquire some of this ceramic stuff and see for myself.

I think I might give them a call.........jackie
 
Do a search on the patent sites for more information .

In one patent "ceramic coating of gun bore" is simply boron nitride powder patched into a clean bore before shooting !


"United States Patent 7197986

Abstract:A method for lubricating gun barrel bores comprises burnishing dry lubricating ceramic particulate into the metal surface of the bore such that the particles of particulate substantially fill grain boundaries in the metal. The burnishing of the particulate may be done manually or mechanically. Mechanically burnishing the particulate includes firing particulate-coated ammunition projectiles or other ammunition-firing pieces coated with particulate."



http://www.shotgunworld.com/bbs/viewtopic.php?t=138252

http://www.dsto.defence.gov.au/publications/4218/DSTO-TR-1757.pdf :eek:

Glenn:D
 
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Has all the makings..........

...........of snake oil;


http://www.otisgun.com/cgistore/sto...setup=1&ida=229&idp=0&his=0&cart_id=1525.6660


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I can smell the snake oil as well and that is why I asked the question. I have no plans to try this on my new barrel but it would be most interesting to see what happens to one that is on the tired side.
 
Sounds as good as Motonew out of Del Rio, Texas.
It was supposed to give a ring and valve job as you drove.
Never got around to trying that one either.
 
Cr-p!!!!!

Does this mean I CAN'T count on that 30 percent accuracy increase.

That was going to be my big edge for next year. Oh well, I guess it's back to the old practice, practice, practice......jackie
 
Up to 35% accuracy gain...

This reminds me of the "freezing a barrel" would remove all induced stress an improve accuracy up to 50%...I once called one of the companies that was advertising great accuracy gains from the sub-zero stress relieving and asked for a copy of their controlled study that supported their 50% accuracy gain..They said "we didn't do any controlled study, it was the feedback that they got from their customers"...:eek::eek::eek:

I told them that that was false advertising to claim such results without a controlled study...they said that they were just going on what their customers told them...SNAKE OIL...and no business ETHICS..:mad:
 
eww1350 said:
This reminds me of the "freezing a barrel" would remove all induced stress an improve accuracy up to 50%...I once called one of the companies that was advertising great accuracy gains from the sub-zero stress relieving and asked for a copy of their controlled study that supported their 50% accuracy gain..They said "we didn't do any controlled study, it was the feedback that they got from their customers"...:eek::eek::eek:

I told them that that was false advertising to claim such results without a controlled study...they said that they were just going on what their customers told them...SNAKE OIL...and no business ETHICS..:mad:
Click to expand...

I'm not a big cryo guy but there's a fairly large body of work extant on the subject of Martensitic and Austenitic steel states...... cryogenic treatment of steels isn't all snake oil.

The "ceramic coating" garbage is........

al
 
alinwa said:
I'm not a big cryo guy but there's a fairly large body of work extant on the subject of Martensitic and Austenitic steel states...... cryogenic treatment of steels isn't all snake oil.

The "ceramic coating" garbage is........

al
Click to expand...


Cyro would be great, when they make tool steel barrels. Anybody that has a phone can call Crucible Steel and ask the techs if cyro works on 416R steel.

Yes cyro works, just not on non tool steel.
 
"freezing barrels"

From the Hart barrel web-site: " cryo-treating steel has been in practice for many years to reduce stress in metal, and is very effective in some metals. The Crucible Specialties,Inc. 416R stainless steel we use to manufacture barrels is virtually unaffected by cyro-treating. Cruvcble's metallurgist have advised us that cyro-treating has no effect on 416R stainless steel". Dated 2/4/2007. 'Nuff said.
 
Krieger Has A Different Opinion

A few years back, Krieger started in house cryo treating barrel stock, not for the stress thing, but for the improved machinability.

They do have some pretty hard facts to back up their beliefs. It is called "the bottom line". Since they started the cryo treatment of the bar stock before machining, they can see a significant improvement in tool life, and a drop in tool cost.

I must say, the Kriegers that I do machine work on do seem to machine awfully well. While my opinion is strictly anecdotal, Kriegers is backed up by the one thing we all pay attention to, money........jackie
 
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