Re: Subsonic bad?
well, not all bullets are unstable as they go transonic, some are and some arnt... this has been proven many times. Read the jerry teo article shooting the .223 to a mile under MOA accuracy for more proof of this.
The only thing that makes them bad for shooting/hunting, is whether they have enough energy and expansion for the desired animal your hunting. As for paper punching, well it dont matter at all, so long as they are accurate. But faster and higher BC is better for less wind dope error.