Whether the powder you used too get or still load with and load the same powder for multiple cartridges. As many state using h4350 or h1000 for many different cartridges what are they (not just those 2 powders)? My 3 most used powders are imr 4320, 4350 and 4831 for only 264wm and 270win for decades before branching out into other cartridges. While I do have many other powders, I haven't used much of them as so far? LRT, n570 and 7828ssc are the newcomers for many of my newly acquired cartridges. 243win seems to be able too use magnum, lrt, 7828ssc also?