I would shop the gun shows in your area - but there aren't that many reloaders that went down that 10mm path. But if they did - you might just have to be patient - and pick up a set of dies.
But I don't see a problem buying a set like Dillon - that are marked 10mm/.40 S&W - it's one die set, and use it for either caliber. Just like the .357 mag / .38 spl - the same dies - just set them up a little different.
But I don't see a problem buying a set like Dillon - that are marked 10mm/.40 S&W - it's one die set, and use it for either caliber. Just like the .357 mag / .38 spl - the same dies - just set them up a little different.