I have a Chapuis 9,3x74R comming in any day now from Dale.

I was thinking about having loads worked up using North Fork Cup Point Solids and NF Softs that mimic/shot to the same POI as the load used to regulate the DR.

Would these be safe to use? I've never owned a DR before, and have heard that certain solids and mono bullets can ruin a DR.

Appreciate the input.

The way the NF solids are made you will not have any problems in a DR.
Mike makes great bullets, I highly recommend them, the flat point solids DO work GREAT