As VM notes, it is quite common. If you score 175+ on the LSAT, you have an excellent chance of getting into Harvard as a BTL, and it is sometimes accomplished with 170-175 scores as well.
Generally, if you score 170+ on the LSAT, you will probably get into a school worth going to even as a BTL. I consider any school in the US news top 13 worth going to. (Yes, I don’t consider Georgetown worth going to. Bite me.)
As VM said, he did lots of research. So ask him questions. There is also a thread on dans deals forums about this. And you should always check the forums dedicated to the topic you are discussing, so in this case that would be some law school application forums.
But to anyone reading this who thinks it may be nogeah: It is quite possible.