Lube on a cartridge case can drive up chamber preasure, create more force on the locking lugs than they were ever designed to take and wreck your gun. Lubing the inside of a magazine will transfer some of the lube to the case and kill you.
Were did you get such an idea?
Scott
PS. Brendon, thanks for the match photo's, I sent them on to the new people that were in them and they were thrilled!