[silvery37]

I am in the process of building a .300 whisper AR. Unfortunately it will take some time before I can get a suppressor. I am going to be using a 16'' barrel. My question is when working up loads without the suppressor what velocity should I aim for? I ask because I am assuming when I add the suppressor it will increase the velocity of the rounds and I dont want them to go supersonic. Basically how much velocity increase should I expect from a suppressor when shooting 220 grain subsonic rounds?