So, how does one tell, by looking at the bullet, whether or not its a secant-ogive or tangent-ogive design? I read that most match bullets are the tangent ogive type. A few, like the Hdy AMAX and Berger VLD are the secant type. I have some Speer 145 BTHP Match bullets, for my 7mm-08. I've read that most of the Speer bullets are the tangental design. **If** I understand correctly:
If the bullet nose arc radius is greater than the bullet shank diameter its the secant design.....I think.....? If true it explains why they look long and pointy.
One of the definitions of spitzer includes something about tangent ogive. My .284 Speer 130's BTSP's look like the tangent ogive type. But, this .284 145 BTHP Match looks to have a much longer arch radius, compared to the Speer 145 BTSP. It looks, to me, like it may be the secant type.....?

All of my shooting is range, informal benchrest. That's why I'm interested in the answers to these questions.
Thanks