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Old 07-14-2015, 01:41 PM   #1
RadScorpius
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Default AK barrels hardness testing thread *DONE*

I'll donate a Bulgarian CHF barrel stub from my Arsenal SAM7K, can someone with the tool help do a hardness testing on it and report back to the community?



Results:

WASR = 22.16 RC
SLR104(1) = 25.16 RC
SLR104(2) = 23.33 RC
SAM7 = 26.83 RC
Chicom = 22.83 RC
Tantal = 29.66 RC
Atlantic = 23 RC
Green Mt = 27.33 RC
AK builder = 26.16 RC
ESS = 5 RC (total shi*t)



Special thanks to Mel64D, AdamP123, frankstang, Junemom for making this possible.
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AK barrels hardness testing results.

Last edited by RadScorpius; 08-01-2015 at 02:45 AM.
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Old 07-14-2015, 02:19 PM   #2
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Any knifesmith's with Rockwell tester? Be careful that the coating or finish isn't being tested in lieu of the metal itself. Unless that is specifically what you are wanting tested.
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Old 07-14-2015, 02:40 PM   #3
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Quote:
Originally Posted by RadScorpius View Post
I'll donate a Bulgarian CHF barrel stub from my Arsenal SAM7K, can someone with the tool help do a hardness testing on it and report back to the community?

The bore surface (where the bullet scrapes) is the most important part to test for abrasion resistance.

Testing the outer surface is irrelevant.
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Old 07-14-2015, 02:52 PM   #4
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I used to work at a foundry when i was in college. I still know a lot of the guys there. I bet i could get it tested.
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Old 07-14-2015, 03:11 PM   #5
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I'll donate my SLR104ur 5.45 barrel stub if anyone wants to test it.
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Old 07-14-2015, 03:16 PM   #6
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...now who has access to a Rockwell Hardness Tester? Wish I knew someone with one......
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Old 07-14-2015, 03:22 PM   #7
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I can also donate a 87 izzy stub
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Old 07-14-2015, 04:17 PM   #8
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Quote:
Originally Posted by frankstang View Post
I'll donate my SLR104ur 5.45 barrel stub if anyone wants to test it.
Quote:
Originally Posted by kalieracer View Post
I can also donate a 87 izzy stub
Sounds good, we just need a someone with a Rockwell tester.
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Old 07-14-2015, 04:36 PM   #9
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i can do them if you want. i did the ones for AKBLUE awhile back. just pm me if you would like.
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Old 07-14-2015, 04:38 PM   #10
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Quote:
Originally Posted by RadScorpius View Post
Sounds good, we just need a someone with a Rockwell tester.
Might as well sacrifice a few pulled bi-metal bullets and copper just for comparison. You might get a more complete picture that way.
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Old 07-14-2015, 04:40 PM   #11
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I too have a tester........so no one picked up on the hint in my post #6
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Old 07-14-2015, 04:44 PM   #12
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Quote:
Originally Posted by Mel64D View Post
I too have a tester........so no one picked up on the hint in my post #6
I did, but didn't notice you posted so I deleted my post lol
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Old 07-14-2015, 05:11 PM   #13
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Quote:
Originally Posted by Mel64D View Post
I too have a tester........so no one picked up on the hint in my post #6
Hey, you are the one who posted that video of hardness testing on ESS and AK Builder barrels right?
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Old 07-14-2015, 05:32 PM   #14
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Quote:
Originally Posted by RadScorpius View Post
Hey, you are the one who posted that video of hardness testing on ESS and AK Builder barrels right?
Yes that's me
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Old 07-14-2015, 06:28 PM   #15
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Folks who wanted to contribute, please PM Mel64D and send barrel stubs to him, he will carry out the tests. Be sure to label them.
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Old 07-14-2015, 08:54 PM   #16
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Nice! I have WASR-10 and 104UR stubs if you guys want those tested.
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Old 07-14-2015, 09:36 PM   #17
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Quote:
Originally Posted by AdamP123 View Post
Nice! I have WASR-10 and 104UR stubs if you guys want those tested.
I'd say that's a +1 on the WASR stub.
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Old 07-14-2015, 10:30 PM   #18
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Quote:
Originally Posted by AdamP123 View Post
Nice! I have WASR-10 and 104UR stubs if you guys want those tested.
Please PM Mel64D and send them his way.
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Old 07-14-2015, 11:24 PM   #19
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I got a yugo rpk stub !
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Old 07-14-2015, 11:49 PM   #20
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Current donors:

RadScorpius: Arsenal SAM7K
frankstang: Arsenal SLR104UR
kalieracer: 87 Izzy
AdamP123: WASR-10 and Arsenal 104UR (WARSRNAL)
chewbaca: Yugo RPK
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Old 07-15-2015, 07:39 AM   #21
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You guys Pm me and I will let you know where to send the parts. Remember these are "Donated" parts, it's a one way trip for them.

Label the parts being shipped and please include your Files Name so I can give credit to those donating.
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Old 07-15-2015, 08:36 AM   #22
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Actually when I sent the stubs to ak-74hero for testing I "blind" labeled them to create a bit more unbiased testing. Simply barrel #1, #2, #3 etc.
Not saying someone like Mel64D is going to cook the results but it removes that issue.
But the cat is out of the bag here already. No big deal.
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Old 07-15-2015, 08:54 AM   #23
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Quote:
Originally Posted by AKBLUE View Post
Actually when I sent the stubs to ak-74hero for testing I "blind" labeled them to create a bit more unbiased testing. Simply barrel #1, #2, #3 etc.
Not saying someone like Mel64D is going to cook the results but it removes that issue.
But the cat is out of the bag here already. No big deal.
I will also make a You Tube Video showing as I use the Rockwell Tester.
This is why I want the parts labeled and the File Member Handle to give credit to.

I am waiting on 4150 Chrome lined barrel from Atlantic Firearms to also be tested.....maybe a Green Mountain barrel as well.
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Old 07-15-2015, 09:15 AM   #24
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^^ That works too. Good idea.
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Old 07-15-2015, 09:32 AM   #25
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Update: I just purchased a Green Mountain barrel to be tested.
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Old 07-15-2015, 01:26 PM   #26
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This thread is full of win.
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Old 07-16-2015, 12:23 AM   #27
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Now all we need is someone to sneak into Century and snag that N-Pap that AKOU returned with tire tread marks on it and..... , oh well, would have been nice.....

Maybe Eric IV8888 could donate a WASR barrel for testing
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Old 07-16-2015, 01:04 AM   #28
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I already sent my barrel stub on its way, a new production WASR and NPap barrel would be nice to test.
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Old 07-16-2015, 06:38 PM   #29
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Apparently no one else contacted Mel64D yet, come on folks!
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Old 07-16-2015, 10:48 PM   #30
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Unfortunately I've got nothing to contribute, but I'm excited to see these results! Big ups to everyone participating!
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Old 07-17-2015, 08:09 AM   #31
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I have Pm'd the members who said they would contribute. Most have answered back.

Once I receive all the stubs I will make a You Tube Video showing the results.....I think that would show people what they want to know without saying it's all hearsay.

Most I am sure will only be interested in the Green Mountain barrel as they are held in high regards as top of the line barrels.

Just wish I still had a Romanian barrel not installed in a rifle to show the specs I got in order to make the first barrel test video.
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Old 07-17-2015, 12:34 PM   #32
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Bulgarian 5.45 @ front sight block = 33rC.
Egyptian AKM@ front sight block = 32.5rC.
Romanian PSL @ chamber = 28rC.
Yugo m72@ gas block = 31rC.

Izzy m91/30 mosin = 25rC.

Greenmountain 5.45 barrel blank = 29rC.
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Old 07-18-2015, 11:41 AM   #33
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Quote:
Originally Posted by RadScorpius View Post
Current donors:

RadScorpius: Arsenal SAM7K
frankstang: Arsenal SLR104UR
kalieracer: 87 Izzy
AdamP123: WASR-10 and Arsenal 104UR (WARSRNAL)
chewbaca: Yugo RPK

Shipped mine out today. Be there Monday.
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Old 07-18-2015, 11:53 AM   #34
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Quote:
Originally Posted by Zim Antics View Post
Bulgarian 5.45 @ front sight block = 33rC.
Egyptian AKM@ front sight block = 32.5rC.
Romanian PSL @ chamber = 28rC.
Yugo m72@ gas block = 31rC.

Izzy m91/30 mosin = 25rC.

Greenmountain 5.45 barrel blank = 29rC.
Thank you for the specs on your tests. Will take note and compare to mine.
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Old 07-19-2015, 06:48 PM   #35
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Really want to see the results... Come on Bulgaria!!!
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