Thread: Powder of choice for 162's in 21.5" 7 Rem Mag?????

Taking the plunge & chopping the 7 Rem Mag from 24.5" to 21.5" & fitting a DPT Magnum overbarrel suppressor. Should keep the package still pretty portable & enough performance to still level deer sized game out to 1,000yds with a decent load. What is the powder of choice for a short barrel 7 rem mag to generate maximum velocity with the 162's? Whether or not the rifle likes the powder combination could be a different story but if I can have max velocity at safe pressures that is also accurate would be the ducks nuts. No asking for much am i