A bullet designed for heavier game will not expand at all at closer ranges in a 7 mag, resulting in worse than ruined meat, lost, dead animal!

While it could be that a bullet designed for heavier game will expand less on a deer, this effect is multiplied as the velocity drops (at longer ranges), NOT vice-versa. It is an old wives' tale that a bullet can be moving too fast to expand!

I suggest trying the 175-grain Nosler Partition. It will expand at very long range/low velocities, yet the rear holds together for maximum penetration.