I know everyone has seen a fired bullet, but I thought I'd throw this one in for a head to head comparison:
208 A-max recovered from 30/221 Shilen barrel. Note nice clean rifling:
Also thought you might enjoy this one. Hornady 90 XTP (.3085 diameter) 2000 fps. I blew up the first jug, soaking my rifle, my chronograph, and myself, and stopped in the second jug, blowing out the side of the jug. Mushroomed quite nicely. This would be an excellent bullet if you want limited penetration: