Too each his own, but I just don't do shoulder shots with my .243. I will take a behind the shoulder shot if thats all that is presented--prefer neck,head, or high behind the shoulder (spine)I roll my own with 80gr. NBT's and Varget at around 3400 fps. If you are convinced to do shoulder shots, just use the 100 grainers-Core-Lokts have probably killed more deer than anything out there.IMHO.
G

"If you don't stand up for what you believe,,you stand for nothing"