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When I inspected it the hole did not burn all the way through but I took the shell out of service just to be safe. The other two cases look great yet. I might order some brass case in the near future.
So in the future if I didn’t burn a hole completely through a case I would assume I can still load it again?
Yes, I have some Remington hull on their 5 or 6th loading. As long as powder or shot isn't failing out you should be fine.
As for trimming the hulls down, I found there is some copper pipe for household plumbing that is just the right size for a 10 gauge hull (Lowes, Home Depot or any decent hardware store). Just use a pipe cutter to get the length you want.
Right now new brass 10 gauge hulls are running between $9 and up PER hull, if you can find them.