Now that is one fancy piece of kit there, that timber is certainly not your ordinary run of the mill lumber for sure!
Wouldn't happen to have your regulating loads on hand mate? Also do you crimp your cartridges?
I hope you get a crack at a buff or 2 with it, certainly will be memorable if you do.
Well done indeed matey, I'd be crowin' too!
Cheers
93x64mm