“Fires a round less powerful than 300blk and not used by anything else.”
It is used in more platforms than 300blk unless you can point me to a 300blk revolver and standard semiauto pistol.
As for power, the heavy 300blk round generates 498 ft lbs and the light 125 round generates 1360 ft lbs. 30 carbine is 1311 ft pounds.
A 300blk is basically a sexy 30 carbine. Like it or not.
Buy a carbine and use the change to buy some sexy panties.
We’re not talking about a carbine were talking about that thing.
I googled and the The first 30 carbine round I found shot a 110 grain bullet at 2000 fps. 300 blk shoots a 100 (better BC) bullet at 2300 fps. That is what’s called more. 300 blk is roughly the same as 7.62 X 39, 30 carbine is not.
Some revolver or pistol that is not in common usage doesn’t mean a round is versatile.
For any logical function this thing could perform, I would rather build an AR pistol.
I can mount an optic
I can use the buffer tube for a cheek weld
I can use all the accessories that work on an AR rifle.
Every part on my pistol except the barrel and the stock assembly are the same as an AR rifle.
I can have any of a dozen different calibers.
I have enough pretty panties, I would rather spend my money on a usable, modular, customization, modern firearm.