Vihtavuori doesnt list alot of options for the 6.5x55, the lightest they list is a 85gr varmint bullet that doesnt come close to these velocities. I wonder how mutch they lowball pressure.
Honestly having been around many of them i would say even the old m96 can handle quite a bit more pressure than people say if in good condition. That ofcourse being the big question. In a CZ550 also chambered for 30-06 and with almost the same bolt thrust surface i would think 60.000psi isnt out of reach.
Il try how mutch i can push the RWS, compare it to Fox and peregrine 100gr. Should be interesting. Peregrines might really benefit from it at longer range.
Always figured 6.5x55 has way too mutch case capacity to be that "slow"