My 22-250 shoots Benchmark powder the best. I tried H-380 and 4895 and neither one worked.
32.6 grains of Benchmark with a 55 grain Sierra HPBT shoots three shots into a 1/4" group at 100 yards. Bullets are seated .010 off the lands. I seat bullets with a Wilson seater. I also use a 36x scope for load developing, then switch to a hunting scope after I find the best load. I do that for all of my rifles. That load makes my 22-250 my most accurate centerfire sporter.
Don
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