I have a 6.5WSM, used to shoot 130Accubonds over compressed loads of H1000. I had several deer and hogs run off after being shot with high speed 130s. The 130s would never quite make it all the way through a deer, most of them stopped right under the skin on the far side.
Somewhere in there I had pressure problems with the H1000 loads. Turned out to be headspace issues. Brass got hard and wouldn't chamber after being resized. Adjusted dies to fix the headspace. Then the next batch sized came out too short. I found that WSM cases are quite thick and need to be annealed often. Annealing solved the headspace issues.
I have now switched to 140 Accubonds and found they are an absolute hammer at high speeds. Nothing has run off after being shot with them. They will punch a golf ball sized hole straight through a deer.
Presently shooting 140 Accubonds over 65 grains Ramshot Magnum with great success.
The 140 Berger Hunting VLDs work great in the 260AI, drop deer in their tracks. I have not tried them in the 6.5WSM though.