JB.
Haven't had my Teslong for very long .
So I've still got a lot to learn.
Before DonKnows passed I scoped his 300 WM.
When you first get a bore scope you tend to want to look at everything:-).
We had twin WMs built by Dan Dowling back in the late ,90s.
If I had to guess I'd say the thing has around 500 rounds down the tube. We shot it out to 650 yards in 50 yard increments for almost 20 years.....
I'm not sure how familiar you are with tool & die shop terminology.
So most tool shops have what's called a sinker EDM machine. You use a copper or carbon graphite electrode to electrically erode steel.
The finish inside Dons barrel, just ahead of the chamber,has a very light speckel of what looked like a typically EDM finish. Wasn't checked.
You could tell it had been shot. But that's about it.
And certainly looked better than my 28 does in pick up top
Just a light speck...
I told Don that at his current usage that he would be a very old man before he had to worrie about it..

Dave



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Only accurate rifles are interesting.