To get the case mouth in the middle of a full diameter portion of the bullet shank (instead of in a groove), I gave a .120" jump. That is a lot of jump but it makes for one load usable in both rifles.
Why are you worried about this? I read somewhere here once that someone had trouble with seating depth changes with the top of the neck in a groove but mine are loaded that way and I have had zero issues. I think they probably had neck tension or brass hardness issues more so than a problem due to a couple thousand more neck contact above a TTSX band. I also ignore cannulure’s on cup and core bullets and haven’t had a problem.
The 130 TTSX shot noticeable better when seated .05 off the lands. I have some loaded from 2 and 3 years ago (with the top of the neck in the groove) and they haven’t moved at all. In fact some of these have been in the magazine when the rifle was fired AND they are also on top of fairly heavily compressed charges or Varget and RL15.
I’d like to hear others take on this but I’m satisfied it is not an issue.