Re: .308 smk
You might want to bump the velocity back 100 fps or so with this bullet, since 2550-2600 is the "sweet spot" for the 168s out of a 308. As to their use on game, Wild rose covered it pretty nicely. Yes, they'll work, no, they aren't designed to, and yes, they'll often act like FMJs. They can also behave like varmint bullets (depending on range, velocity and any bone encountered) due to their fairly thin jackets. Bottom line is, they're designed to punch holes in paper, end of story. Listen to what Edge said here, too; the 8mm 200 SMK is very similar in design to the 168s, and his results don't surprise me at all.