So at the knob creek mg shoot (God rest its soul) I ran into a vendor selling a .40 SW MAC10 upper. Good guy with a solid rep, and we started talking. The initial conversation was about doing a MAC10 upper in 10mm, and he recomended a lage upper to start with, because it would allow you to tune for the heavier caliber a little easier. From there my deranged little mind started thinking, if 10mm is viable, how about a 9x25 dillon (I love that round, I know it is niche, expensive, and oddball, but hey, what cool things aren't?)
Here is what I am thinking...
1 Get a lage Max10/9
2 Open up bolt face for the 10mm base
3 Rechamber barrel for 9x25 dillon
4 Tweak grease gun feed lips to function correctly (host is a powder springs M10/45)
I know I am going to have to mortgage my home to feed it, but the idea just won't die. Any thoughts or issues I'm missing?