Actually, Nosler started putting heavier jackets on their Ballistic Tip bullets some years ago. The BTips are analogous to the Speer BoatTails, both designed for longer range hunting where velocity has dropped off and the BT shape helps retain a little more velocity. The Speer HotCores are analogous to the Nolser Partitions, holding together better, expanding a bit slower with a smaller diameter mushroom. If you may get shots up close, stay away from the Speer BTs and the Nosler BTips.
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