410 = well .410
44 = from .427, to .430
Pretty tight fit.
I'm not saying it wouldn't work, but I am suggesting it could be a tad interesting if it doesn't.![]()
This was back in the late 1950s and I may have misremembered. Maybe it was a 44/40 which probably makes more sense. And at that time it would likely be close to a pure lead ball.





















































