Here is my FV-SR with a suppressor mounted - after all, what good is the "SR" option if you are not going to suppress it.
The scope is a Nikon 1.5 - 4.5x20
And here is a picture of a 5 shot group I shot with it earlier this week. Using the fairly new .22 CCI Quiet ammunition in conjunction with a suppressor is absolutely the quietest way to shoot this gun. But groups with the Quiet ammo were in the 1.5-2.5" range. (The pictured group was shot with CCI Mini Mags)