One thing about it Terry, EITHER of the weights would spell "lights out" for moose. I know when driven at extreme velocities (over 3500fps) the 150 TSX in a 30caliber will NOT stay in either a moose or an elk in most situations. The equal weight, smaller diameter 150/7mm should do the same. I suppose you can get em "warm" too about 3100-3200fps? That should be great. I wouldn't hesistate to use the 150 Lazerheads/TSXs from my Warbird on elk. They just out penetrate anything else out there.

Good luck,
RA