Just bought 250 Berrys plated 230gr RN to try. I use Unique with jacketed bullets primarily, but I'm having trouble locating a proven load for this combo. Gun is a 30sf, and I have been loading to 1.240 OAL and crimping w/ Lee FCD to .470. I'm thinking of starting @ 6.0 grs. Might this be a good starting point?