Copper fouling in match barrel?

[velocette]

I recently finished an AR build using a Shilen 20" SS match barrel, .223 Wylde chamber. First time I used a high end match barrel in a build.
It now has about 150 rds through it. The two times I cleaned the barrel, (aside from minimal break in) I did not get any copper fouling out of the barrel.
That is, the patches never turned blue / green. I use Shooters Choice which is a copper cleaner. Are high end match barrels so nicely finished inside that they don't copper foul? Or copper foul so little that it is negligible?
Accuracy is superb as in 3/8 ~ 7/16" 5 shot groups @ 100 yds.

Roger

 

[TurtlePhish]

Lapped barrels are usually smooth enough that copper fouling is cut down to almost nothing. It'll take a lot of shooting before copper becomes a problem.

 

[JDGray]

With 300+ rounds through my Shilen Select Match barrel, I have yet to get any copper out of it, in 3 times cleaning! I'm not cleaning it again