The stock heads of what I shoot usually have had the old oil leeched out, the stocks refinished, and the inletting impregnated with glue. I'm not too worried about the stocks.
My primary concern was keeping pressures to within a reasonable level for the barrels. Feedback here seems to indicate that the pressures I have are fine.
The task now is to determine what of the materials I have, in what measures, will give me a shell that I can shoot several rounds with and not hurt the gun or my shoulder. Thought I had a good candidate, but settling powders, and my newness to the activity have proved there is more to do and learn.