I asked a Hornady tech about this ammo a little while back, and he told me that American Whitetail and Hornady Custom using the same bullets are basically the same load.

It's just that they're only making American Whitetail in the most popular bullet weights and types for each cartridge to help them get caught up with bullet AND ammo production.

Which makes sense because only only their popular bullet weights and types are available as components right meow.

Everything else is suspended until they get caught up, which is a pisser for me since I tend to like their suspended bullets in 7mm, .308, and .338, oh well, it is what it is.