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.
I've got an old pre-64 300 H&H with a Lyman receiver peep chunking 220 gr Partitions at a leisurely 2750 that I'd dearly love to shoot a big brown with, betting the cost of my hunt they'd work.
