Zee, The cast bullet you asked about is a 388gr. HP loaded over 14.0grs of HS-6 in 480 Ruger brass and shot from a 5 1/2"
Ruger Bisley.... The boar was around 30yds... This bullet was made by Dick Thompson with help from Glenn Swaggertt.... They gave me this load info after trying different powders and finding that the HS-6 load of 14.0grs gave the best velocity for this hollow point to work properly.. I believe a 0.5 grain increase caused the petals to shear off...