Why shoot a tortoise? Where I grew up in south GA you can walk in the woods near river beds and find some where the tortoise has been dead a while or you can find one hit by a car. Probably not the easiest way to get the real thing, but at least its not like you killed it for a razor.

Sorry, the biologist in me likes to keep the rare animals safe. I have no problem with hunting or fishing, but I don't like the idea of killing rare creatures so I can brag about what I shave with.
I just bought faux tortoise from Texas Knife Supply, but they are bad about returning emails if you have questions.
Good Luck!