It depends upon the chamber. Almost 20 years ago, I did a test with all the 30/06 dies I could find, plus mix and match sets. At the end of the summer the main thing I learned about my 1937 '03 National Match was the chamber was 0.003" from being perfectly aligned with the bore. That was from case head to the end of the neck. Dies and techniques that would consistently load cartridges of LESS the 0.003" would shoot the same as long as they were as straight as the chamber. Every thousandths over would increase 10-shot group size.
So I found the best combination of dies and techniques and now only check when I set up to reload match ammo. Doing that, the rifle won the CBA Scoped Military Rifle in 2007, and with Lyman 48, the Modified Iron Sight in 2016.
It is a waste of your time and components to try to bend the bullets straight, that just makes things worse. When they come out of the seating die, they have to be straight.