Need help finding a chart

I cant find any charts for KBQR/D77 (Buffalo Lancaster airfeild)
I'm trying to find out the magnetic heading of the runway. I can't find an accurate reading and all of my sources are showing a 7* difference :-/
I'm trying to find out the magnetic heading of the runway. I can't find an accurate reading and all of my sources are showing a 7* difference :-/