Check to see if they are sized to .358 - if so then carry on and move 'em as fast as you like.

Leading is most often encountered with either undersized boolits or swaged pure lead.

Cast and sized over by .001, you're good to go.

This is not to say it definately will not lead, but chances are great that it won't.

If however it does, some copper Chore Boy strands wrapped around a bore brush will take care of it pronto.