Cinchy52
FNG
I use H1000 & RL 17 in 1 of my 300 mags. I use RL 17 with 190 gr. Nosler Accubond LR , {the Nosleer manual lists it as most accurate for 190 gr } & my gun likes it with the Hornday ELD-x 178 grain. I never see anyone recommend RL17 but it works for me!