Throat erosion and N4 barrels

I’m curious as to the actual benefit in terms of longevity of the “double thickness” chrome lining on Noveske N4 barrels.

Essentially, what I’m wondering is at what sort of round count does a “normal” (Colt, for example) chrome lined bore have its chrome lining worn away at the throat? I’m not familiar with the actual thickness of barrel chrome linings vs. the amount of throat erosion necessary to make a barrel inaccurate, or even unsafe. I’m assuming that the chrome lining is completely eroded before the barrel’s effective life ends, although I may well be wrong about this.

For the guys out there knowledgeable in the technical aspects of barrel throat erosion, what benefit do you foresee in doubling the thickness of a bore’s chrome lining? Will it really double the useful life of the barrel?

Very good question, I am curious as well.

I would like to throw in another variable as well, gas port erosion?

Throat errosion is going to depend on more than simple round count. Rate of fire and type of ammo are going to be a big factor.

Same with port. I’ve read a few of our gurus’ comments that carbine ports tend to errode to a certain point, and then “settle in”.

I imagine that there are so many varibles that could come into play here that it would be hard to say. Rate of sustained fire, type of ammo used…

Noveske puts out good products and I am sure that at least some testing has been done on his part to make sure the claims made by the company are true.

Yep, what he said 30 seconds before me

I know this doesn’t specifically answer your question but here is a link to an interview that David Crane did with John Noveske

http://defensereview.com/modules.php?name=News&file=article&sid=1167

http://defensereview.com/modules.php?name=News&file=article&sid=1167

good luck,
al

that’s a great interview, brings even more respect to his products.

really looking forward to part two.