Since most 6.5mm bore shooters are using long VLD bullets, I doubt that there is enough magazine length to handle those bullets, so they are an advantage that you can't ever take advantage of because of the COAL limits of the magazine.
I've shot the heck out of the 25 WSSM and think that it is the best of the three commercial WSSM cartridges.
There isn't a varmint or predator that a 25 WSSM loaded with a 75 grain VMax won't handle.
Likewise there isn't a medium game animal that a 25 WSSM loaded with a 100 grain Partition or 110 grain AB won't handle.
The B&M 450, 475, and 50 Super Short cartridges are also an option if you don't mind dealing with Bruton and McCourry.
I have a spare 70 Super Shadow that I have considered rebarreling in 500 S&W, but it is a project that might never get anywhere beyond gathering the components.
