Hornady makes a 88 eld seating stem and maybe a 75 as well. I use the one made for 88s with everything 75gr bthp, 77 smk, 80 smk, 80.5 berg, 85.5 berg, no issues.
https://a.co/d/6844dJl
I also have struggled to get the 75 eld to shoot in a Bartlein that shoots literally everything else tight...