I have taken exactly one 270# boar but am very proud of him anyway used a Mountain Mold home cast LWNGC
.33 meplat about one inch through the hide .400 inch crimp grove to meplat-- hornady .416 GC and Bac lube
three shots all clean through from a blue 5.5" Redhawk .41
mv was 1320 fps since it was a custom conversion could have gone up to about 1400 but this was enough- I was around pigs on a farm but never heard one bellow as this one did on the kill shot from back of ribs forward to exit in front of the left shoulder