Meh, not impressed. What would impress me, the ammo companies stop waisting money and resources on the latest and greatest that don't do a dang thing that our current rounds do, and start pumping out rounds for the existing cartridges we have and stop gouging us with artifical shortages.
Improving existing cartridges doesn't sell new guns.
How many rifles have been sold in 6.5 ManBun?
Most new cartridges don't last because of the limited number of rifles chambered for them.
7mmRemMag is available from any manufacturer and every style.
On the other hand, the Winchester short magnums, limited availability. The Nosler rounds, .260Rem and on and on. Handgun rounds are the same situation.
The .45GAP, .357Sig, .327Fed, .32H&R
There is no magic. Build it and see. Some awesome cartridges never make it beyond "cult" followers.