If its based on the 404...its basically something like a Rum necked to 264. Considering the barrel life of a 7 Rum, what would one expect of this? Then one gets into chamber lengths and barrel twists to stabilize different weight bullets. Probably be put in a very small window of sweet spot for accuracy, and game performance. Cartridge may be ahead of a practical hunting projectile.
By this i mean, if one shot a VLD/Amax type projectile, at advertised velocities those frangible bullets would go splat at 3400 ft/sec in the much more common short range hunting situation. Very wide, shallow wound with a great deal of meat loss. At the same time there just isnt the same energy and smack to ethically take large animals at long range with a maximum 160 gr projectile. Stouter bullets may simply pass through with little energy transfer or expansion at slower long range velocities.
Sounds like they have created the ultimate in long range sheep, antelope rifle. Just dont see that being a big market. Might be a big hit with the target crowd. Not for me.