Thread: subs in a saum

Greetings @Huk,
By far the easiest would be to buy a .308 for your sub loads. Hodgdons has plenty of tested data with four different powders for the 190 grain projectile. They also offer reduced load data for the lighter projectiles using H4895 (AR2206H) in the .308 and.300 WSM in their tips and tricks section although not subsonic.
Trying to produce sub loads in the .300 SAUM is doomed to failure or worse IMHO. Definitely do not use any load that you can't find pressure tested data for from a reputable scource.
Regards Grandpamac.