What sort of dies are you using and is this your first time reloading for this calibre?
Measure your case make sure it’s not over coal and try seating a primer. I usually use lapua brass which are pretty good out of the box but I had to get some Norma brass for a .270 and had to do a lot of uniforming on the primer pockets to stop the primers sitting proud.
It depends how fussy you want to get but the cases will expand after the first firing so unless you’ve plenty of time on your hands trim them after the first firing unless they exceed coal before first firing in which case trim.
Good luck