Well Chad you may be rushing it a bit. First off lets start with a few questions ok? Can you give us the specs of the gun ie. what scope are you using? Did you install the rings and bases and has there been any work done to the gun?
Did you shoot a ladder test? Whats the twist rate of your barrel? What range are you load testing at? I use H1000 and a 185g VLD in my 300 win mag. Please read the artical below
Optimizing Precision And Accuracy From VLD Bullets
Here is a short list of things to check on your rifle
Action screw tension 65" pounds for piller bedded actions, 35 for all others( thats my personal rule)
Are you bases and rings torqued to manufactures spects and did you apply blue locktight?
Is you box magazine binding? You should be able to move it a small amount with your hand.
How does your crown look? Take a patch and run it around the crown look for any threads of material caught on a burr.
When your testing your loads how long are you waitng between shots? I wait 10 min before firing the next round.
I know its alot and I realy didnt hit it all but check the rifle first and then we will start with your handload.