Sometime when you have a chance you might try a .458x300 gr. Bloodline from Knight. For years I was a Nosler Partition fan - but let me tell you the Bloodline has the best 'Terminal Ballistics' I have ever used. ASK Justin if he would send you a pack?
I can testify to the performance of the Bloodlines. My daughter dropped a big old buck we wanted out of the herd last season with one of them. DRT performance. High shoulder shot bisecting the spine and obliterating the lungs without a lot of meat damage.