I have shot a box of these in the 6.5-284. I HBN coat them and use them to stand in for 130 Accubonds which cost more or 130 Berger Target. I find them accurate and Have powered them to around 3300 fps in a 26 inch Bartlein barrel of my M-70.
I like VV N-560 best 56-56.8 gr. I have tested IMR 7828, Ramshot Magnum, Magpro, 4000MR, Win 780 and had good results. I use F210 primers with N-560. With the others I use CCI 250s. The group is at 400 yards.