Just for clarity:
Ogive: (o-jive) the curved portion of the bullet from the bearing surface to the meplat (see attached).
Meplat: (meh-pla) French for FLAT. The tip of the bullet.
COL: Cartridge Overall Length—distance from case head to meplat.
Unless the bullets are EXACTLY the same (and that...
>BTW, Hodgdon makes Hodgdon, IMR and Winchester powders
No, Hodgdon does not make powder, they buy it from the plant and distribute it under their name (Winchester and IMR are licensed to them for their use).
You take 20 burn rate charts and you'll get 20 different listings and they are all...