I'm thinking of a bullet for my 10.5x47 break open, and will be shooting the Holy Black in it. I'd be looking for a bullet in the 250-300 gr. weight range given that this is a rather small case. But I'll need one with lube grooves adequate for BP. Does anyone make one? I'm getting the Saeco catalog in their next mailing, and have only seen the Rapine pictures in the Buff Arms catalog. Don't know what else they make. The RCBS 416-350 is overly heavy and light on the lube grooves.