Gunsmithing Subsonic barrel

nrar15

Private
Full Member
Minuteman
May 19, 2003
176
30
65
Indiana
Getting ready to cut the barrel on one of my 308 Savages to use with my HVT and subsonic ammo. Anybody have an opinion on barrel lenght that works best? Or just use my 24" barrel that is already threaded.
THANKS
Bob