Mine is made by Redding - not cheap and I don't know who might be carrying it.
If you've got some "MacGyver" in you, it's worth a try to see if 357 Mag dies would work. I use cut-down 357 Max brass and it's a bit thicker where it's cut than at its mouth. That and using bullets in the 0.355" range might help the 357 Mag dies size the brass enough to grip the bullet. You'll want to ensure neck clearance regardless of what bullet and brass you use. If it's still too loose, a 223 Rem F/L die could be used to size it down slightly - they are tapered from 0.376" to 0.354" so it comes down to how far you push it in to get the neck diameter you need.