The M700 270 I have will shoot anything good with the exception of 150 gr Speers. I prefer to use plain ol blue box Federal 130's in it because those bullets are absolutely dynomite on deer.
The M700 7-08 I carry a lot prefers Prvi Partizan... the cheap Serbian stuff. I get some obscene groups with it and it hammers deer just fine also.
I dont really have a gun I cant get anything to group well in. The closest thing I have to a turd is a Vanguard 7mm. I havent found anything to go under 2 inches in it but everything is right around 2 inches so it would be fine to hunt with.