308 16” barrel suppressed shooting LT-32?

[SamT1]

I videoed it. Need to figure out how to post that. The muzzle crack is nearly the same sound as the target hit. I can hear the bullet trail, but not I film.

 

[SamT1]

Try this for video.

 

[jmr40]

Is this right that I need to use super fast powder?

I can't help with the suppressor. But no, you don't need to use a super fast powder to burn it all in a 16" barrel. Even the slowest suitable 308 powder will completely burn well before 16". This might be something to consider from a 10" or shorter barrel.