Phantom, looks to me like it should work. You have a larger cartridge, heavier bullet, but your anticipated pressure is in the range we have been working and so far our bullets have all been stable. Everything we have tested for rifles has been either a round nose of spire point, both designs have given good results with loads first developed with copper jacketed bullets. We haven't done anything with hollow points so it will be interesting to see how it works out.
What some don't understand is with all the engineering tables that have been developed at some point someone had to test the theory and see when it broke. Powder coating is nothing new but using it to make a polymer jacket for a bullet is, so we are in an area where the only data that exists is what we make, but for me that's the fun of it.