I have not used it, but I read that ad too.
If that's the one with the soft flexible polymer tip, then the claim makes sense to me.

The pointed tip increases the aerodynamics of the bullet, so it's more efficient in the air, and the flexible tip makes it safe for use in tube-fed guns like lever actions.

How much it makes a difference is a BC math game that is not my strong suit. I'll leave that to someone who knows more or has shot the thing.