With lubed cases I would worry more about bolt thrust than pressure. Back in the early 03 Springfield days lubing the bullets was necessary to prevent the stripping of the copper nickel alloy bullets from lining the bore. Sloppy application of the Mobil lube would coat the chambers and cause bolt thrust to destroy the rifle and sometimes injure the shooter.
Be sure to wipe the chamber dry before doing any more shooting of full power loads.
Be careful of forming the brass with reduced loads as some reduced loads can cause a process called detonation. I think pistol powders are preferred for reduced loads. I would try a recommended load from a manual to be safe with reduced loads.