Certainly a bit of confusion in regards to the calibre it even could be from reading the cartridge info, referring possibly to 9.3, 9.4 as well 9.5 might be best to even slug your bore Buckstix!
Hope it turns out what you hope it is, it will be a fair thumper considering if its based on a shortened 11.2x72mm case!
Lovely piece of kit there mate, & you'll have to make up another label for the case that it comes in!
Got a few challenges yet to accomplish!