Thanks man! Yea it’s alot of work but fun work! It's something I've always wanted to do. And so far I've done it all without any heavy machinery! Ie lathe, mill, etc. I cut that chamber by hand. I am soon going to invest in a lathe tho I've been wanting one for several years I'm getting into some pretty extensive projects and it's time ! Lol I will for sure send you some dummy rounds for you collection! Maybe someday it will be in a book and you will have one of the prototypes lol. I seriously doubt that it's not a marketable cartridge sadly Noone builds mausers anymore I'm still living in the past haha. Unfortunately I'm down to my last 2 mausers and I guess I'm done my mauser source has officially dried up I can't find them anywhere anymore. I was getting them thru sarco Inc but everything they had are all sold out even the old Spanish 1895s are sold out now. ☹️