I no longer use a 7mm mag and haven't for years. When I was tho, I tried about eery bullet I could find. Finally I setelled on the 160gr Speer bullet. It was plenty tuff enough and kept it's weight well. In hind sight, I think the 175gr bullet would have served as well. I wouldn't concider anything smaller than the 160gr for fear of bullet failure at 7mm mag velocities. That is on heavier game. The deer I shot with the 140 class bullet's got tore up pretty bad. One bear I shot with a 140gr Sierra I had to shoot again because the bullet didn't make the trip, it blew up just under the skin in the chest.
I'm not sure you really need even 160 and 175gr bullets other than to be sure the bullet's don't come apart up close. I've had the 160gr bullet completely penetrate several elk.
One for the Young at Heart in trying.
Whitetail hunting can be fun when you and a hunting partner want to make for some fast action during mid day hunts after morning stand hunting is over and waiting for your evening hunt. Few years back I wanted to demonstrate one of my methods to my son how two guys can make for some fast action during mid day hunting. The set up is for two people when the crops are usually off and the only cover left is...