I had not shot at paper yet with my suppressor. It doesn't seem to affect accuracy much. Here is a full mag at exactly 50 yards. The two low shots were my first two shots. I'm wondering if it takes a couple shots to warm up the suppressor or something? Maybe Belt_Fed or someone can say? A full mag of CCI Standard Velocity using my range bag for a rest (Sig522). The hole is about an inch or a little under from end to end. I suppose using sandbags and 5 shot groups you could get the group size way down but that really isn't the point here. I just wanted to see if the suppressor negatively affected accuracy and it does not seem to at all. This is pretty much how the rifle did without a suppressor.