Lyman makes pistol and rifle bullet molds in .32 caliber. The problem is that if you go much heavier than 115 grains, you have trouble stabilizing the bullets out of slow twist barrels. Keep the bullet length at 1.5 times the diameter of the bore for slow twist barrels. You will probably get better accuracy with any bullet is you use a good, thick, fiber, or wool felt, OP wad behind the base of the bullet. Make sure the wad is groove diameter or slightly larger to give you a good seal. Gas cutting can be a real problem when shooting lead bullets out of slow twist, deep grooved, RB barrels.
Use .32-20 BP cartridge loading data to give you an idea what you will get shooting bullets in your .32. If you want to use a .32 on any game larger than squirrels and rabbits, I would recommend restricting y9our shots to 50 yds using open sights. With a scope, you can extend that range to 75-80 yds. Accurate head shots are required for DRT kills. Otherwise, brush up on your tracking skills.