I’ve been testing a 45cal 1/22 twist prototype. This will be changed to 1/20. There will also be a 50cal which I will recommend 1/26 twist. As far as propellants nothing set in stone yet. They will be break open Muzzleloaders. The ATF has them now and I’m being told no later then November will be able to add more details. So far I’ve harvested one Deer, around 17 Ground Hogs, and 1 Coyote. It is by far the safest cleanest ML I’ve ever used right out of the box. And I’ve harvested sabotless and with sabots. Accuracy is the same as any other ML I’ve used. Wish I could share more, but it’s worth waiting for.