I shoot 72.3 grains of H-1000 in my 7 LRM @ 3027 fps with 1/4" groups at 100 yards. After 1063 rounds fired, the rifle maintains its precision. My bullet of choice is Berger 180 grain Hybrid Target. Hope this helps.I just ordered a box of 200, so I am looking for some experience with the 143 HH out of the 7 LRM. These days I don't have the powder selection I once did, so I would like to use H1000 as I have more of that than anything.