I have been reloading for my Handi for a few years and cannot seem to find the load that makes sub 1” groups at 100 yd. I have found best is to resize with Redding body die and then neck size. I am using 42.1 grains of IMR 4064 and 178gr Hornady ELDX bullets and am getting 3” groups at 100 yards. Any suggestions for bullets or powders or methods to get sub 1” groups? Forearm is floated with bushing for forearm stud. I have also shimmed receiver to tighten fit for barrel.