Gun people: Cryo treating a barrel

[usmcdoc14]

I am getting a FAL this weekend I am getting it for a good deal because the previous owner shot corrosive ammo he did not know was corrosive and pitted the barrel (no idea on how bad) but is including a brand new barrel with it

would you cryo treat the new barrel?

would or can you cryo treat a chrome lined barrel ?

[Albin]

There's debate on whether it's good for world class shooters. For a standard FAL barrel, not worth it.

Al

[RedPlastic2p3t]

i would just put the new barrel on it and go with it

[usmcdoc14]

Originally Posted by Albin

There's debate on whether it's good for world class shooters. For a standard FAL barrel, not worth it.

Al

its $40 man aint like i dropping some big cash on it and i may improve its accuracy some

And then i can be like the cool kids and list it in my sig line on the gun forums

[whistle pig]

Fire lapping the new barrel would help accuracy more. imho.

[v-twintech]

Originally Posted by usmcdoc14

its $40 man aint like i dropping some big cash on it and i may improve its accuracy some

And then i can be like the cool kids and list it in my sig line on the gun forums

Just shoot the damn thing.

[usmcdoc14]

Originally Posted by whistle pig

Fire lapping the new barrel would help accuracy more. imho.

where are you getting your lapping compound from? i can only find shit way to corse

Originally Posted by v-twintech

Just shoot the damn thing.

I plan on it but i would like to make as accurate AND reliable main battle rifle as I can. That and I will have some time while I beat on the other barrel

[Bubba Ray Boudreaux]

Originally Posted by usmcdoc14

where are you getting your lapping compound from? i can only find shit way to corse

I plan on it but i would like to make as accurate AND reliable main battle rifle as I can. That and I will have some time while I beat on the other barrel

Doc,

I was wondering, when the Apocalypse arrives, can I come over?

[Brainer]

Use JB bore compound for hand lapping if it's not a chrome lined bbl.

Chrome lined bbl's don't need lapping or any other special treatment. They are chrome lined for durability and to reduce fouling...not accuracy.

[usmcdoc14]

Originally Posted by Bubba Ray Boudreaux

Doc,

I was wondering, when the Apocalypse arrives, can I come over?

just practicing and reinforcing my rights ,officer. Nothin' to see here, move along

I did pick up 100' of cannon fuze at the gun show last week

[usmcdoc14]

Originally Posted by Brainer

Chrome lined bbl's don't need lapping or any other special treatment. They are chrome lined for durability and to reduce fouling...not accuracy.

yup. but if i can keep the lands/grooves nice and sharp for longer then it may be worth it also but i have no clue if cryo treatment of hard chrome will do shit or is even worth the effort.

[whistle pig]

I get most of my stuff from Brownells or midway.


From a manufacturers site.

DOES CRYOGENIC ("CRYO") TREATMENT OF BARRELS HELP IN ANY WAY?

No.

ArmaLite has frequently been offered cryogenic barrel treatment services, with promised increases in accuracy, life expectancy, and easier cleaning. In each case we have stated that we would consider the treatment only when provided solid engineering data proving the promised benefits. No salesman ever returned with the data.

In late 1998 an experienced High Power competitor and official of Sierra Bullets, Mr. Kevin Thomas, published an excellent article in Precision Shooter magazine that reported results of a well designed test that confirmed no measurable benefit from the treatment.

Until independent, scientific evidence to the opposite is provided, ArmaLite will not resort to or recommend cryogenic treatment.


WHY DOES ARMALITE OFFER THREE TYPES OF BARRELS (CHROME MOLY, CHROME LINED, AND STAINLESS STEEL)

Because each barrel has advantages suited to different uses.

ArmaLite's Chrome Moly barrels have excellent internal surface finishes, and offer excellent accuracy for a reasonable price. Chrome lined barrels offer excellent corrosion protection and slightly longer life expectancy, but are more expensive than unchromed barrels. In addition, the process of electro polishing the barrels, and the chroming process itself, tend to reduce accuracy somewhat. Stainless is easy to process to fine surface finishes, and provides moderate corrosion resistance.

.

[Bubba Ray Boudreaux]

Originally Posted by usmcdoc14

just practicing and reinforcing my rights ,officer. Nothin' to see here, move along

I did pick up 100' of cannon fuze at the gun show last week

Hell man, I'll need protection, just need somewhere to go.........

[usmcdoc14]

Originally Posted by Bubba Ray Boudreaux

Hell man, I'll need protection, just need somewhere to go.........

wait untill i get a better duty station.
I am still within the glowing blast radius of D.C. right now


whistle pig: thanks for the info but who is this "ArmaLite" company you speak of, never heard of them when buying my AK stuff

[whistle pig]

Here is a link . they are mostly into Ar-15/M-16's http://www.armalite.com/

[usmcdoc14]

Originally Posted by whistle pig

Here is a link . they are mostly into Ar-15/M-16's http://www.armalite.com/

you didnt catch the sarcasm
You may be suffering from tryptophan poisoning.

[whistle pig]

Originally Posted by usmcdoc14

you didnt catch the sarcasm
You may be suffering from tryptophan poisoning.

Yep I caught it, After i posted that. Didn't see any need to edit it out
I'll just take consequences like the noob I am.

[usmcdoc14]

Originally Posted by whistle pig

I'll just take consequences like the noob I am.

a noob with weapon knowledge is ALWAYS welcome here

[basketcasejeep]

Originally Posted by Bubba Ray Boudreaux

Doc,

I was wondering, when the Apocalypse arrives, can I come over?

Careful Doc, I think Bubba likes your gun and is trying to shack with ya!

[broncman]

Originally Posted by whistle pig

I get most of my stuff from Brownells or midway.


From a manufacturers site.

DOES CRYOGENIC ("CRYO") TREATMENT OF BARRELS HELP IN ANY WAY?

No.

ArmaLite has frequently been offered cryogenic barrel treatment services, with promised increases in accuracy, life expectancy, and easier cleaning. In each case we have stated that we would consider the treatment only when provided solid engineering data proving the promised benefits. No salesman ever returned with the data.

In late 1998 an experienced High Power competitor and official of Sierra Bullets, Mr. Kevin Thomas, published an excellent article in Precision Shooter magazine that reported results of a well designed test that confirmed no measurable benefit from the treatment.

Until independent, scientific evidence to the opposite is provided, ArmaLite will not resort to or recommend cryogenic treatment.


WHY DOES ARMALITE OFFER THREE TYPES OF BARRELS (CHROME MOLY, CHROME LINED, AND STAINLESS STEEL)

Because each barrel has advantages suited to different uses.

ArmaLite's Chrome Moly barrels have excellent internal surface finishes, and offer excellent accuracy for a reasonable price. Chrome lined barrels offer excellent corrosion protection and slightly longer life expectancy, but are more expensive than unchromed barrels. In addition, the process of electro polishing the barrels, and the chroming process itself, tend to reduce accuracy somewhat. Stainless is easy to process to fine surface finishes, and provides moderate corrosion resistance.

.

I may be wrong, but I do not think Armalite makes the barrels themselves. Some think it bad practice to admit that something they have not done to their product would make it better and therefore refuse to admit. I know their is great discussions over this. Would I cryo a finished barrel? NO... Most of my new guns get custom barrels anyway. Here is the catch!! They ARE cryo'd by the maker to begin the whole process!! Cryo'ing the blanks produces less scrap due to better machining! This can only help in the long run, not harm. Can it make a better shooter out of an allready machined blank? I do not think it would as much as cryo'ing it before any machine or rifling work is done... I know their are preferences for barrel makers and even arguments on lapping and fire lapping. For me, I went over the recordbooks and went from their and have been REAL happy with my custom AR. My next build is for a F-class TR rifle.

[deadmeat]

So, with this talk of barrels and accuracy,

Does a barrel need "breaking in"

I have read of....

One shot, cool, clean, repeat until the first patch is clean.


Haven't bought a new firearm in a while so haven't tried it myself.
Coments? Questions?

[CJHeap]

Originally Posted by whistle pig

Fire lapping the new barrel would help accuracy more. imho.

I disagree and so do most gunsmiths since all you will do is wear out a good barrel.

http://www.bellmtcs.com/FAQ/Fire_Lapping.htm

[Bo185]

Here's my buddys cryo site. Does just about anything. Check out his site. Deep Freeze Cryo! I would do a new barrel!

[Trailrated92]

Not to intentionally hijack the thread or anything , but as a former lurker now "noob with weapons knowledge " figured Id chime in ? No Cryo opinion , but the private arsenal is always building , Currently in house

1) Remington 870 12 gauge, Choate composite Tac Stock , 6 shell side saddle , ghost ring sights , 7 round mag extension, Surefire 6v Slide/Light

2) Bushmaster M4A3 , 4 pos collapsible stock , CQB Solutions Assault Sling, Ready Mag mag holder , Tango Down vert fore grip , SureFire Tac light , Laser Devices AN/PEQ2 , Knights Armament SIR Quad Fore End , Tac Charging Latch .

3) Hk USP .40 Fullsize , Surefire X200 light, Hi Caps , LEO trigger job

4) Taurus PT 92 , Hogue grips , Hi Caps

5) Kimber Warrior ( new MEUSOC issue) and Kimber TLE -RLII

6) HK 91 G3

Wifes

1) Taurus Millenium .40

2) Ruger .357 6"

3)WASR-10 AK-47 with Redstar Trigger (she did the trigger job herself )


Now flame away on the "noob" for hijacking

[usmcdoc14]

Originally Posted by deadmeat

So, with this talk of barrels and accuracy,

Does a barrel need "breaking in"

I have read of....

One shot, cool, clean, repeat until the first patch is clean.


Haven't bought a new firearm in a while so haven't tried it myself.
Coments? Questions?

not unless you really like cleaning your weapon most damage to a barrel is done via idiots and the bore brush

I have heard more NO than yes on that subject