This is all I have. The design is similar to a Trophy Bonded Bear Claw although I don't think the front end is bonded. Best guess is it acts more like a Partition. Front part of the bullet is shrapnel on impact and the back is a solid copper shank that plows through for an exit. I have no idea about the minimum impact speed for reliable expansion but the jacket looks really thin so I'm thinking fairly low.
There is plenty of load data for 125-130 grain bullets out 30 calibers. I would just work up from the minimum recommendations. I plan on trying them in my FNAR.