Hey - saw you post in a thread about building an 18" 280AI and running suppressed. Just curious to see what kind of speeds you are getting? I'm in the midst of building a 280AI as well (suppressed 100% of the time) and was contemplating 20" vs 22". I already have a nice shorty 308 16.5" that plays that roll well. Was hoping to bridge the gap with something handy as well for those longer shots.