Stumblejumper:

According to the "Handloaders Digest 1996 15 Edition" on page 82 they show facts on penetration tests using many bullets, and here are a couple facts:

A 130 gr. 7mm Barnes X traveling at 3022 f/s penetrated sauturated telephone books 13.8".

A 175 gr. 7mm Nosler Partition traveling at 3022 f/s penetrated sauturated telephone books 18.9".

This is the fairest comparison I could find on page 82. I don't think 10 grs. more weight concerning the 130 gr. Barnes X bullet is going to out penetrate the 175 gr Nosler Partition.

One needs both Bullet Integrity and SD for a bullet to preform to its full potential. A bullet will not preform to its full potential with only one of the above qualities on heavy large boned game, or longer raking shots.

Good luck