Some measurements:
All cal throats were .3575" slugged and miked and also calipers in the throats. No difference. Like it was the same reamer. Nice!

Both ends of the barrel and the length of the bore measure the same - no taper - I think it's .3570" but I am challenged on the five groove barrel.

Cylinder gap .010"

All I shot was 50 148 gr wadcutters and five 135 gr Speer LE Short Barrels. All in .38 Special

Shot very very well. The stop before the sear releases shooting DA is more pronounced than my older Ks. SA was very crisp. Everything feels a bit stiff and new. I'll fix that.

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Thanks from the beautiful Blue Ridge Mountains