I use a CZ 527 American in .204 Ruger for close work, out to 300 yards. I also have a CZ 527 Varmint for out to 500-600 yards. My mid-range rifle (500-600 yards) is a Remington VSF with a Krieger tube chambered in 6mm BR sporting a NFX 5.5-22 scope. Here are a couple of pics from yesterday:
For the 1000 yard and beyond mark I use a 7mm Rem. Mag with 168 Bergers.