The Hornet was never designed as a tack driver, and although you may get one that is, don't be surprised if roughly moa is where you end up.
Also, they are not overly fond of the heavier bullets, from what I have been led to understand. But I am about to contradict that. See below...
I have an NEF in Hornet that I had converted to a "K" because of longer case life and a bit better ballistics. The rifle shoots quite well; matter of fact, the best load I have found for it is the standard Winchester 55-grain soft point and 10 grains of AA 2200. The load is almost one ragged hole at 100. To say I was surprised would be a big understatement.
And don't under-estimate the round with cast. My favorite plinking load is the Lyman #225107, coated with liquid Alox and seated un-sized in front of half a grain of Accurate #2 and a cotton pellet, lit with a small pistol primer. It is dead silent, and shoots to one hole at 25 yards. I developed the load to get rid of squirrels in my parents' back yard; one year during a bad drought they were stripping the bark from the pecan trees. The load is dead silent: all you hear is the hammer falling, and I have to break open the NEF and blow down the barrel to get the cotton pellet out, but it is absolute death on squirrels to 25 yards!
I have the Lyman #225450 mould as well. One of these days I am going to get around to working up a load for that projectile, too.
Enjoy your Hornet; just be careful seating bullets, as that neck is VERY thin and easily crushed.