John...What do you intend to hunt with them..??.. The Speer Grandslam is a somewhat more stoutly constructed bullet than the Sierra, so it might be a better choice for moose...The Sierra expands quicker andwould work fine as a deer bullet...



If I were going to hunt deer, black bear and moose with the same bullet, I'd get the Grandslam, as long as it grouped well in my rifle...