Not sure what size or wieght your bullet is, but I use a Miniball bullet mould for my .58 Zouave:



This is a true miniball bullet. Don't know why Lee cals their bullet a mini??? It is more like a flat based conical.

I will be trying this bullet in my newly acquired T/C Big Boar .58

If you tinker with the powder charge, you may change your accuracy some.