I've used a standard two die set and have seat quite a many 140 VLD with zero issues. I'm not guru by a loooooong stretch. I've had no issues and used no tricks seating these bullets.
I've had great results with either of the 4350, Hybrid 100v, Varget. I used rcbs die set. Cci and Rem 9 1/2 primers is what I've used. Haven't experimented much. 100v has been great for me