Are you able to call your "mistakes?" If so then measure the ones that are "clean" shots. It's those 3 out of the ten that you need to make sure are not because of the load, flyers, and are actually booboos. I usually shoot 3 5-round groups of the same load to get a better feel for the best accuracy. It takes more time and of course more money but it works best for me.
Sometimes a different primer will pull in a group. A tighter crimp can make a difference too.
There is another thread going on with "pet" 44mag loads that may help you out too.
Pop em in at the bench and blast em out down the tube