Awesome! They remade the .440 Corbon more or less. The article says that Starline is making the brass, and that HSM is loading the ammo. If the box shown is from HSM, then they must be doing a private-label sort of job for Magnum Research with the “Glacier Ridge” name on the box. Glacier Ridge was the brand name for some accessories offered by Magnum Research in the past, but has not been branded on ammo before:
Looks to be close to the 44 COR-BON, looking forward to being able to compare.
.429 is 44 Caliber on some projectiles.