So as to not tie-up the other thread you linked to here, no, but...
We were fooling with the Leopard many many years ago, which is what they call the 6.5 WSM.
The reality is the WSM case is very very close to the same case capacity of the 264WM, and the velocities are the same. With anything, let alone a wildcat; far too many people try and "read" pressures from brass and think they aren't over-pressure. Brass and primers DO NOT accurately report ANYTHING. A Pressure Trace strain system however, does. From a pile of Pressure Trace testing we did over Christmas in the Creedmoor, 98% of the Creedmoor loads people are touting online, are over pressure. Now if high pressure doesn't bother you, fantastic. But in the Creedmoor, and I don't know how scalable this is, an extra 50-75 fps comes at the cost of 10-15,000 psi.
For your barrel life question:
This ALL depends. Are you actually going to be shooting and getting the barrel hot? Or are you a 50 rounds a year guy? Will you be competitive, or demand that level of performance, or is 55-gallon drum at 200 close enough? The competitive shooters, usually only get about 3k from a Creedmoor. With the added capacity of the SAUM, that same rate of fire cannot somehow last as long.
These loads functioned and sounded perfectly, and are why you should not be "reading" pressures.
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