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Archived [ARCHIVED THREAD] - rockwell hardness of barrel extension and bolt?
Posted: 6/4/2008 5:29:42 PM EDT
Like the title asks, what is the rc of barrel extension and bolt?

Link Posted: 6/5/2008 5:49:24 AM EDT
[#1]
85 on the barrel extension, 89 to 90.5 on the bolt, afaik,

Link Posted: 6/5/2008 11:26:57 AM EDT
[#2]

Quoted:
85 on the barrel extension, 89 to 90.5 on the bolt, afaik,


Sounds much to high to be Rockwell "C" hardness?  Maybe "B" scale readings.



Jeff

Archived [ARCHIVED THREAD] - rockwell hardness of barrel extension and bolt?
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