Which is to say, the heavier, thus slower bullets may not expand as they would from a cartridge that can drive them faster. It is rather relative though, since distance and retained velocity play into it. With the Hornet you may limit you shots to 150, maybe 200yd? Trajectory may be your real limiting factor, and how most distance shots are missed. The heavier bullet will also have more beans if you want to knock about some silouettes, etc., or the game you are after doesnt need more than a punch though. As said, it will almost be a Whisper and they do have a reputation.