Like the 22TCM, there are apparently too many problems with a center-fire CMR. This round would be well suited to the Sub2K platform, though, it looks like to me. But the availability of the round might make it unappealing just like the 22TCM.
Except the 30 luger/mauser and the Tokorov that evolved/was copied from it are bottleneck cartridge. The SC is a straight walled cartridge and I think is an attempt to bridge the performance gap between the 380 and 9mm in guns compatible with 9mm. It's too hot for 380 sized guns.There's a much cheaper way - it's called the 7.62x25 Tokarev. The Russkies have been using it for for 90+ years with great effect. The TT-33 and variants like the Yugoslav M57 are famous for their reliability. They and their magazines are also quite inexpensive. It's interesting - when moving the hammer to half cock on a TT-33, it actually locks the sear, trigger, and slide. The half-cock is essentially a multi-function safety. While a bit heavy (all steel) it shoots very well; being very controllable despite the hot round. If someone really wanted to, they could shrink the pistol size and use a polymer frame. A Glock in 7.62x25 Tokarev would be excellent. The biggest complaint is the tiny sights. A semi-talented gunsmith can easily remedy that.
As to ammo, the bottle necked 7.62x25 Tokarev case feeds more reliably than a straight-walled case. Prvi Partisan makes an excellent JHP round. Finally,an outfit called Craft Holsters makes high-quality, reasonably priced carry holsters.
The .30 Luger is another caliber that the .30 Super Carry duplicates. Tbis round dates back to 1898! It's a real zipper, too - a 93 grain projectile @ 1,200 fps. This is the father of the ubiquitous 9mm round, so it could use the same 9mm magazines used in the hundreds of 9mm pistols on the market.
Bottom line: This new round is just a slight repackaging of an old, proven concept; just another means of separating the ignorant from their $$$.
Which means that on a battle field, a person with a 9mm weapon could pick up .30 super ammo and use it single shot, while the .30 super carrier could not use a 9mm round, much like in Vietnam where a 5.56 could be used in an AK by the NVA or VC, but not vice versa.All of teh articles I have read along with the available drawings showing the dimensions all say the 30Super Carry is 1.169" long which is the same as teh max allowed length for 9mm.
Here they are next to each other