I have a Sako heavy Varminter in 6 PPC. It is the last one they made, a friend's wife special ordered it for his birthday. After his deployment in 2005, the both decided to let me have it (and the Redding Competition dies, and the 200 rounds of Lapua brass, and the scope base adapters!)
It shoots 1/4" groups at 200 meters with 55 grain Nosler BT and 29.2 of H-322 and Rem 7 1/2 primers. It is devastating on ground hogs to around 600 yards, with very humane kills even at that distance!
If you are loading real PPC brass (from Sako, Norma, or Lapua), it uses a small rifle primer and a special extra small decapping pin! I used a universal decapping die with a regular size small pin and enlarged the flash hole, on 50 pieces of brass! This brass produces 200 meter groups over 1/2" (which ain't bad!), with the same load. Pay close attention to how much lead you use. My rifle used about .005"; a friends custom 40X like .025"; another likes .000" (called on the jam!)
I have one box of Sako factory ammo left (kind of orangish/pink color) this is the best factory ammo ever made, if you find come, treasurer it!
Let us know how you session goes.
Ivan