Sure I would, with the following caveats:
1. My "dream gun" concept has changed a bunch of times in the last 30 years.
2. Your dream may well already be in the safe, with just a bit of gunsmithing.
3. Recognizing that even modern barrels are very rarely perfectly concentric, I would want to
personally measure the wall thickness, carefully rotating the tube to identify thin spots. I have confidence in my equipment and the reproducibility of my numbers.
4.
If the .019" was past 18" - 20" from the breech, with adequate wall thicknesses to that point.
Scroll down toward the bottom here and you'll see the pressure at 18 - 20" using Black, Bulk, Dense, or Progressive Burning powders is about 1000 psi or less. Some of the curves are pressure/time and others are pressure/distance.
https://docs.google.com/document/d/1F2sQuPm05IE4VWYYnCkvuXmYEzQoWd_SQgaAfUOZEFU/preview?pli=1 5. And I'd still use low pressure loads
