I seated at what Barnes recommended starting with at 0.050 and i never moved it from there. When I first started working with the TSX I was trying to seat at 0.010 as I do with other bullets with no luck at all. When I looked at the little card that came in the bullet box and seen what Barnes recommended I went with that and everything came together. I don't know where the driving band was seated in reference to the case mouth.
