Big Redhead, my buddy and his Dad had a 6PPC barrel put on a small Sako action some years back. His Dad passed away and my buddy inherited the gun. Shortly after that he sold all his guns including the 6PPC. I shot it a bit and it was a pleasure to shoot. I believe it was barreled by Brown Precision. Gun was blue and walnut.
Can't say I know much about them other than handling and shooting this one. I do know that people will hunt deer with the 6PPC round and I wouldn't hesitate to do it if I was using something like a 85 gr partition or even a Sierra 85 gr HPBT Gameking.
Wish I could help out more.
