If the bullet is oversized, then I refrain from using my Lee Factory Crimp die. It tends to swage the bullet down. I just give them a really light taper crimp, usually crimping and seating in the same step.
You'll have to experiment with the load. I find starting loads or just above starting loads for jacketed data works best for many calibers, but you'll probably want to start with lead data and definitely not exceed mid range jacketed data.