The best question is why? There are a lot of quality BP cartridges out there.
The 32 special was origionally a smokeless load, the reason it can be reloaded wit BP is the 1 in 16 twist rate, slower than the 30-30. Do a search on BP cartridges, there is a lot of info on loading them, basically fill the case up to the bullet with powder, good idea to put a grease cake on the top, seat the bullet, and fire. Make sure there is no air space in the cartridge, it must be completely full.
Let us know how it works out, and good luck.
The Forty-Four spoke and it sent lead and smoke
And seventeen inches of flame. -Marty Robbins