Yes, the Hornady Match Grade Dieset will work with Hornady Brass and Sierra Match King projectiles. The portion of the description that says Lapua Ammo was a mistake and being corrected.
The Hornady Match Grade Die Set can be used with Hornady Brass.
This is what the manufacturer says is the advantage of using these Hornady Match Grade Dies. "Hornady® Match™ Grade Dies give you total control over neck tension in the resizing process. These dies feature the ability to use interchangeable, self-centering neck size bushings that eliminate the chance of over sizing your case necks and overworking the brass."
Yes, the Hornady Match Grade Die Set MPN: 544349 is .300 PRC.
No, the bushing is not included.
Yes, that comes with the Micro-just Seating Micrometer.
The manufacturer says
They absolutely can use those other brands in these dies with no issues.
Mark H.
Yes, these will work with Hornady brass.