Ogive shape

[Its204fast]

I just read https://www.accurateshooter.com/ballistics/tangent-vs-secant-vs-hybrid-ogive-bullets/ because I wasn't clear on the difference in Secant and Tangent bullet profiles. It got me thinking, how would a bullet with a concave profile fly? would it be even more particular over seating depth than tangent profile? would it be a ballistcally superior bullet?

What are your thoughts? If you have a link about this post it.

 

[Doom2]

To put it simply, it would be a lousy bullet. Aerodynamically the sudden change in contour at the shank would result in flow separation, vortex shedding and high drag. I suspect the bullet would have lousy stability.