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Thread: Gas port erosion with different barrel profiles

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    Gas port erosion with different barrel profiles

    Is there any evidence that thinner profile barrels exhibit port erosion any sooner than thicker barrels? I did search on port erosion and did not find my answer.
    Last edited by ether; 01-14-13 at 23:04.

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    Quote Originally Posted by ether View Post
    I'm going to try this again, running on the assumption that MistWolf has located her medication by now.

    Is there any evidence that thinner profile barrels exhibit port erosion any sooner than thicker barrels? I did search on port erosion and did not find my answer.
    I think that's an insult, do you mean throat erosion and barrel length?
    "After I shot myself, my training took over and I called my parents..." Texas Grebner

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    Will a 14.5" pencil barrel port erode any faster than a 14.5" M4 barrel port?

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    Quote Originally Posted by ether View Post
    Will a 14.5" pencil barrel port erode any faster than a 14.5" M4 barrel port?
    Again are you talking about the throat? I have never heard of a gas port eroding. So my answer yes and no

    I just read through all your post expect to see this closed to
    Last edited by ICANHITHIMMAN; 01-13-13 at 22:46.
    "After I shot myself, my training took over and I called my parents..." Texas Grebner

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    what ether is asking is if the gas port on a .625 barrel thickness under the gas block erodes quicker than .750 barrel thickness under the gas block due to less wall thickness of the barrel.

    pencil vs govt/m4 profile

    sorry. i do not know the awnser i but am curious as well if it's possible.
    Last edited by SMT85; 01-13-13 at 22:56.

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    Next time instead of insulting a member and showing your ass (by admitting you were too lazy to use the SEARCH feature) try doing exactly that.

    Quote Originally Posted by ether View Post
    I'm going to try this again, running on the assumption that MistWolf has located her medication by now.

    Is there any evidence that thinner profile barrels exhibit port erosion any sooner than thicker barrels? I did search on port erosion and did not find my answer.



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    Quote Originally Posted by SMT85 View Post
    what ether is asking is if the gas port on a .625 barrel thickness under the gas block erodes quicker than .750 barrel thickness under the gas block due to less wall thickness of the barrel.

    pencil vs govt/m4 profile

    sorry. i do not know the awnser i but am curious as well if it's possible.
    I know what he is asking, I am trying to get him asking the right question he is worrying about something that is not going to be an issue at all before the throat is worn out. When a barrel is shot out its not the rifling or the gas port its the throat.
    "After I shot myself, my training took over and I called my parents..." Texas Grebner

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    Quote Originally Posted by ICANHITHIMMAN View Post
    I know what he is asking, I am trying to get him asking the right question he is worrying about something that is not going to be an issue at all before the throat is worn out. When a barrel is shot out its not the rifling or the gas port its the throat.
    sorry brother, was just trying to help him out.

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    I think the barrel steel and chrome plating quality play a larger roll than the thickness of the barrel. If you, however, do alot of mag dumps the thinner barrel will most likely wear in all areas faster than a thicker barrel because of the increased heat. Gas port erosion is a non-issue with most guns, unless you are shooting for absolute accuracy.
    Last edited by michael word; 01-14-13 at 02:56.

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    Quote Originally Posted by ICANHITHIMMAN View Post
    I know what he is asking, I am trying to get him asking the right question he is worrying about something that is not going to be an issue at all before the throat is worn out. When a barrel is shot out its not the rifling or the gas port its the throat.
    This isn't true in every case. To the best of my knowledge.

    You know Andrew's 40K round test that's been passed around lately?

    The "Federal Barrel" only had 10k in it, and the gas port had showed erosion. The rifling and all is still intact. Now he didn't measure the leade, or throat (I wish he would have, and I've thought of contacting him about it.) but I'd be willing to bet that at 10k rounds it would have been mostly intact.

    Also. I do think barrel thickness makes a difference. But I don't know how measurable. And I think it'd have to be a more extreme example to measure it properly. Like SOCOM profile against LW. Not M4 profile.

    Assuming both barrels were shot using the same ammo, under similar conditions, and were made the same way, by the same maker, and of the same barrel length.
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