I would try H4831 powder, Nosler B.tip 150gr bullet, with your Federal 215. I would seat .010 of the rifling. I use a Lee crimp die with 1/2 turn crimp. This $8.00
crimp die is well worth it. Both IMR and Hodgdon 4831 are good go to powders for the 7mm mag. H4831 meters better then IMR 4831 through the powder measure.Seating bullets in a hunting rifle on the Rifling is asking for problem with max loads. You don't need a case getting stuck in the chamber from high pressure in the woods. I have great results in my 7mm rem mag with nosler 150gr B.tips....hope that helps.