I just got finished working up several loads for a heavy barreled 22-250 in a Savage and would share the following info.................I found Varget - H380 - H414 - IMR4895 - IMR4064 - to all be good starting points for an accurate load.The ball powders (H380-H414) were dirtier for fouling and a little more temp sensitive during the summer(more fps deviation due to pressure changes in direct sun).I found the most accurate loading for my rifle to be 36 grains of IMR4064 with the Hornady V-Max 50grain bullet.Used Winchester and Norma brass with Winchester Large Rifle primers.Used Magnum primers with the ball powders for best results.I found .030 to be the best distance off the lands for max accuracy with mine.When all was said and done 1/4" groups were the norm and all powders listed above would accomplish this with the bullets seated straight in the case and powder charges weighed carefully.Forster Benchrest dies are a very good investment if you are accuracy oriented.I ended up with an average of 3834fps in a 26" 1in12 barrel.Enjoy your new varmint rig and enjoy working up some good loads for it.
woods