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Thread: New Sharps Relia-Bolt design using S7 tool steel.

  1. #1
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    New Sharps Relia-Bolt design using S7 tool steel.

    Here it is:

    http://www.alloutdoor.com/2014/01/08...ia-bolt-ar-15/

    The Sharps Relia-Bolt. I'm just not liking the Np3 coating, the untested S7 steel (in this high shock-loading and repetitive temp-cycling capacity), or the altered lug profile. But, I could be off and it could be a leap forward.

    Can a metallurgist (or somebody familiar with S7 tool steel) opine on this?
    "That thing looks about as enjoyable as a bowl of exploding dicks." - Magic_Salad0892

    "The body cannot go where the mind has not already been."

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    They where working on this a few years ago. I had not heard about Shapes in a long time figured they went under. Sharps sent out a bad batch of receivers early on and got a bad rep. S7 steel is suppose to be real high grade from what I understand.
    "Victory was in my hands... But I inserted it backwards."

    FBHO!

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    "Self Lubricating" "Self Cleaning".... BS flag and alerts right there. I've an NP3 bolt that is BLACK. You can't even tell it's NP3. Works fine, but most certainly isn't cleaning it'self.
    "What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v

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    Snake oil BS.........

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    S7 is a tool steel made by Carpenter Technologies. It has very high impact toughness (the ability to absorb energy) and shock resistance. It can be air or oil quenched but cannot be hardened as much as other tool steels. It also resists softening at high temperature. S7 also has a tensile strength much higher than C158.
    B.A.S. Mechanical Engineering Technology

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    Quote Originally Posted by Eric D. View Post
    S7 is a tool steel made by Carpenter Technologies. It has very high impact toughness (the ability to absorb energy) and shock resistance. It can be air or oil quenched but cannot be hardened as much as other tool steels. It also resists softening at high temperature. S7 also has a tensile strength much higher than C158.
    Thank you for the info. Which is more expensive between the two?
    "That thing looks about as enjoyable as a bowl of exploding dicks." - Magic_Salad0892

    "The body cannot go where the mind has not already been."

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    Pound for pound I'm not sure but I want to say C158. I remember reading here that C158 can only be ordered in massive lots. S7 is very available in any size order. Whether its S7 or C158 the material makes up very little of the end cost.
    Last edited by Eric D.; 01-16-14 at 18:47.
    B.A.S. Mechanical Engineering Technology

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    I have one of these that I hope to test tomorrow.

    Sent from my Torque using Tapatalk
    “The rifle itself has no moral stature, since it has no will of its own. Naturally, it may be used by evil men for evil purposes, but there are more good men than evil, and while the latter cannot be persuaded to the path of righteousness by propaganda, they can certainly be corrected by good men with rifles."

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    I like how the website uses the term "assault rifle"

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    And "NP3, an electrodes nickels-based finish".

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