I've never seen a TTSX that didn't shoot lights out with a max (or near max) charge and the bullet seated to the front of the first driving band. 243, 260, 7-08, 270, 30-06, 308, 338, 375 H&H..
So all grooves are seated in the neck?
Not my pic, but just like this. Maybe a hair above the neck so crap doesn't get in. Yes, I set the seater die by eye. Measure later.