Found a video here, explains just about everything. https://www.youtube.com/watch?v=UqfpMxci168
My synopsis,
6mm MAX (is SAAMI)
designed by Brian with BC Precision ballistics
Being marketed through Sons of Liberty Gun works
Partnering with Starline for brass
supposed to be available to the public in november 2023
uses standard 223/5.56 bolt face (only needs a barrel change)
350 legend is the parent cartridge
Geared towards PRS
designed around a 20in barrel
58g v-max 3528fps
85g Speer BTSP 3015fps
90g eldx 2826fps
Seems they considered the 6.5 grendel type 2 bolt face used by the 6mm arc to be problematic and wanted something with a standard 223/5.56 bolt face size. They said whey wanted to increase case capacity and burn more of a slower powder to keep pressured down. 6mm max has slightly better water capacity, but based on the shape of the cases I would wager actual capacity for powder will be significantly reduced due to how far the bullet is seated into the case.
My synopsis,
6mm MAX (is SAAMI)
designed by Brian with BC Precision ballistics
Being marketed through Sons of Liberty Gun works
Partnering with Starline for brass
supposed to be available to the public in november 2023
uses standard 223/5.56 bolt face (only needs a barrel change)
350 legend is the parent cartridge
Geared towards PRS
designed around a 20in barrel
58g v-max 3528fps
85g Speer BTSP 3015fps
90g eldx 2826fps
Seems they considered the 6.5 grendel type 2 bolt face used by the 6mm arc to be problematic and wanted something with a standard 223/5.56 bolt face size. They said whey wanted to increase case capacity and burn more of a slower powder to keep pressured down. 6mm max has slightly better water capacity, but based on the shape of the cases I would wager actual capacity for powder will be significantly reduced due to how far the bullet is seated into the case.