Woodleigh makes a hydrostatically-stabilized 140 grain solid copper bullet that is appropriate for the 7mm caliber rifle and handguns. They are available in packs of 20. Check them out if you will on the web.
As a result of emailing the Woodleigh Bullet Company I am convinced this 140 grain solid bullet is ideal for penetration and can be driven fast enough in a 7mm-08 and stabilized with a 1 in 9 inch twist barrel to accomplish any task put before it.