For range work and competition, the HAP projectiles are probably very tough to beat. Although they are, on paper, designed as hollow points, Hornady did not design and does not make them with expansion in mind. I believe the two reasons for making them hollow points instead of FMJs is that, all factors being equal, hollow-pointed tail-heavy projectiles tend to be very slightly more accurate than FMJs. And, with hollow, deformable points, they tend to mash shut on steel targets, and are far less prone to ricochet than cast or FMJRNs.
I never actually read that FROM Hornady, but I'd bet serious beer money on it being right.. If memory serves, Doug Koenig uses a FMJ (plated?) HP made by Zero bullets in competition. Whether it's b/c those PARTICULAR HPs shoot more accurately, or if it is b/c HPs GENERALLY shoot better evades me, but I'm inclined to believe the latter.
FRANKLY, I think Doug Koenig could out-shoot most people if the JHPs in his ammo were loaded upside down, so the actual difference may only be evident in shooters of HIS skill level.