I am working up a load for my 300Wby using the Hornady 212 ELDX. Each group I fire has a flyer in it usually high left about an inch or so out. The other 2 shots are touching or almost touching. The powder I am using is Retumbo and is giving good velocity out of my 24 inch barrel. I think the primers in these loads are Remington's but I prefer Federal 215's. The one prblem that comes to my mind is seating depth as my Hornady die varied about .oo2 on the depth of seating. Could it be another issue I am missing like neck tension or some thing.