I've spoken with a couple SE guides who had bad results with clients who used lighter NPs in various magnum .30s with less than hoped for results. They consequently ruled that NPs aren't up to the task not realizing Nosler builds the larger partitions differently than the smaller ones. If I were forced to use a 300 RUM on a big bear I'd choose a TSX over a NP, but that will never happen because I'll keep on killing them with the .375 and 9.3 with those beautifully consistent partitions.