If you have enough stations on the Dillon, you might try getting a Lee Factory Crimp die for the 32-20. Instead of a roll crimp, it uses a collet to "squeeze' a crimp similar to some factory rifle ammo. It's not as sensitive to case OAL as the regular roll crimp is.
I have a thousand or so Desperado bullets with BP lube, for mine, but hadn't loaded any for years, until a few weeks ago. Loaded some with Bullseye for my S&W DA, and some with Goex for my '89 Marlin. Of course, I forgot to mark them, and messed up, so my S&W needs a real good cleaning now.....