We've raised reg Charolais since 1969 and our customer base is the commercial cattleman. Our customers have used our bulls on virgin heifers (angus and hereford cross) with no problems.
The breed as a whole has worked hard to reduce the calving problems that have haunted us in the past. Just like the Angus breed there are growth bloodlines that come with higher birthweights and calving ease lines that will give up a little at weaning time. Find a Charolais breeder that will work with you to determine what type of bull would work in your own specific situation. Pay attention to EPD's as well.