DI am listening. What I hear is "they're magic, wind doesn't affect them", (don't worry about BC), concentrate on impact velocity...
I'm listening, but the answer doesn't add up. Physics matters. If velocity was all that mattered I would go load up some 60 grain pills in my 257 wby and hunt coastal bears.
My question is:
1. Do they need jump or not?
I'm not trying to bicker with you ButterBean, but BC is directly related to wind drift. 260 grain bullets are not light for caliber so they won't be traveling at 4k fps. All of the things I'm wasting my time worrying about really do matter. So pardon me if I discount a reply like "load light and drive them hard"
I don't think anyone has ever said Hammers are wind resistant. You are misinterpreting the discussion on effective BC. + they are light - not heavy - for caliber. What the BC taketh the high velocity gives back.
Sectional Density is another matter, referring to your 60 grainers for bears. Speed and their unique construction are game changers - they penetrate. They really have changed the rule book. They have their own chapter now.