StoneHendge Wrote:The ID of a Grendel case is somewhere right around .40 so unfortunately, I don't think 10mm would work. Would make for a great "10mm Maximum" semi auto handgun, though.Threefiddyseven Grrrrrr would probably end up looking like something in between 300 BLK and 458 Socom. Which is a gap that should be filled!
L to R: 6x45, 6x6.8, 6.5 Grendel, 300 Blackout, American 30 (30 SPC), 35 SPC.
![[Image: 39428863824_0f1b12faae_c.jpg]](https://farm5.staticflickr.com/4662/39428863824_0f1b12faae_c.jpg)
458 SOCOM
![[Image: 41377072651_f6c1b27b0a_c.jpg]](https://farm1.staticflickr.com/897/41377072651_f6c1b27b0a_c.jpg)
Six5 (6.5x6.8 or 6.5 SPC)

