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Old 07-10-2013, 06:12 PM   #11
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Quote:
Originally Posted by purehavoc
It looks as though the 4142 Tensile strength and yield strength is alot higher than 8620
4142 is 140,000 PSI tensile and Yield 90,000 PSI and a Brinell Hardness of 300 compared to 8620 steel . 100,000 PSI Tensile and 85,000 Yield PSI and a Brinell hardness of 185

I cant seem to find much on the specs of 158C
Damn pure! Your on the ball! Where the hell did you find that out.good to know. Thanks for the schoolin.
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Old 07-10-2013, 06:29 PM   #12
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Google is your friend my brother

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Old 07-10-2013, 06:57 PM   #13
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Did Sota tell you the material. I couldn't find any spect on their site.
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Old 07-10-2013, 07:13 PM   #14
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Did Sota tell you the material. I couldn't find any spect on their site.
Yes I called and talked to a lady , she put me on hold and went to ask the guys in the back what materials are used , she said the older bolts were 4140 the newer ones 4142 . Seems as they have pretty good customer service, especially answering my question on the spot and not trying to tell me its proprietary material and we cant tell you like some other manufacturers out there . I have heard that the people that had bad bolts had them replaced . So atleast they are taking care of their customers
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Old 07-10-2013, 10:32 PM   #15
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That's good to hear. Thanks for the scoop. I'll get one order, hopefully their in stock

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Old 07-11-2013, 03:36 AM   #16
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Well pure! You convinced me, I just ordered a Sota bolt. That was the last piece of the puzzle. Now I get my parts back from my cerekote guy and I will slap her together. Thanks for the help.

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Old 07-15-2013, 11:47 PM   #17
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Got my Sota bolt today. Looks good, we will see how it does. Parts come back from cerekote Thursday!

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Old 07-23-2013, 10:00 PM   #18
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Found a new Enhanced bolt being produced for 7.62x39.
Their is supposed to be the best available.
They have bolt tested to 6,000 rounds plus no damage.
This may be the new super bolt we've been looking for.


http://libertygunworksinc.com

LGW now offers our Enhanced 7.62x39mm Upper Groups
which will fire steel cased ammo with no damage to the bolt.
these upper groups use our patent pending Improved 7.62x39mm bolt that this macined from aircraft stainless steel and dense micro-chromed for smooth operation.

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