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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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.
Will a 14.5" pencil barrel port erode any faster than a 14.5" M4 barrel port?
Last edited by ICANHITHIMMAN; 01-13-13 at 22:46.
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Jonathan Morehouse
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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"After I shot myself, my training took over and I called my parents..." Texas Grebner
"Take me with a grain of salt, my sarcasm does not relate well over the internet"
Jonathan Morehouse
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.
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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