Got my first Swede in the mid 1990's for the same reason, the ability to load those heavy bullets if needed. Love the mild recoil, excellent accuracy and on game performance.
In our various 6.5's I've tried the 156 gr Oryx, 156 gr Vulkan and 155 gr Lapua Mega bullet and they all produced fine accuracy. All were 8 twists but I bet you'll be fine in a 1 in 8.6 with any of them.
When I had a Ruger 77 Mk II in 30-06 I had a great load with Big Game and the 150 gr E Tip. Had excellent results as well in a 303 British, 358 Norma, and heavy bullets in 35 Whelen. It's a good powder that does well in a lot of different applications.
Hard to tell exactly but those look like Chinook to me. They sure do have it tough when the water is low. Good to see them coming up and escaping the bears too!
An old thread come to life again! Since posting 11 years ago when I had no experience with the 160 gr Partition it's now one of my favorite bullets in the 270 Win. Usually quite accurate and performs great on bigger game. Going to try them in the 6.8 Western this coming year when things settle down.
One of my favorite's I love the ones where they show it in slow motion. Clearly the Kangaroo has never taken a right cross like that before! Love the shocked look on his face.