Just loaded up some new Lapua brass last weekend myself, ran it through a Lee collet neck die and only chamfered the inside. the outside was so smooth it did not need it. I'm with NVhntr, waste to trim before you fire a time or two.
On a side note I also had some new Norma cases, they were defective. the primer pockets were too small and too shallow, I thought if I sent them back that I would probably see them after the Biden error was over.............it took 6 hours to ream and uniform to get primers in
