Sounds like a good challenge. You can rent this tool
https://4drentals.com/product/11o-crowning-tool-22-caliber/
This is the basic design of the tool I have. No 22cal pilot though. Or buy the Manson kit and sell it.
Then maybe have it recrowned professionally and see what happens.
https://4drentals.com/product/11o-crowning-tool-22-caliber/
This is the basic design of the tool I have. No 22cal pilot though. Or buy the Manson kit and sell it.
Then maybe have it recrowned professionally and see what happens.